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The resistors have resistance of 3.0 Ω and 6.0 Ω as shown.

M18/4/PHYSI/HPM/ENG/TZ2/16

What is the current in resistor X?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

0.40 A

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0.50 A

radio_off.pngradio_on.png

1.0 A

radio_off.pngradio_off.png

2.0 A

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Score: 0 / 1

(V–I) characteristics shown and are connected in parallel.

N15/4/PHYSI/HPM/ENG/TZ0/18

What is the resistance of the lamp and the resistance of the diode when the current in each device is 2.0 A?

 

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

radio_off.pngradio_off.png

radio_off.pngradio_off.png

radio_off.pngradio_on.png

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Score: 0 / 1

N09/4/PHYSI/HPM/ENG/TZ0/09

The Coulomb constant is k. Which of the following is the electrical potential at the centre of the square O?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_on.png

0

radio_off.pngradio_off.png

`(4kq)/r`

radio_off.pngradio_off.png

`(4kqsqrt2)/r`

radio_off.pngradio_off.png

`(-4kqsqrt2)/r^2`

Wrong

Score: 0 / 1

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

`p/4`

radio_off.pngradio_off.png

P

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4P

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16P

Wrong

Score: 0 / 1

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

6 V is the potential difference across the resistor.

radio_off.pngradio_off.png

6 J of thermal energy is dissipated in the battery.

radio_off.pngradio_on.png

6 J of chemical energy is transformed in the battery.

radio_off.pngradio_off.png

6 J of thermal energy is dissipated in the resistor.

Wrong

Score: 0 / 1

M18/4/PHYSI/HPM/ENG/TZ1/15

What is the electric potential difference between the initial and final position of the ion?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

`(EQ)/s`

radio_off.pngradio_off.png

EQs

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Es

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`E/s`

Wrong

Score: 0 / 1

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

The current in the battery is 6A. 

radio_off.pngradio_off.png

The potential difference across the load is 12V. 
 

radio_off.pngradio_on.png

The power dissipated in the battery is 18W. 

radio_off.pngradio_off.png

The resistance in the circuit is 1.0Ω.

 

Wrong

Score: 0 / 1

The magnetic force on the proton is

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

from left to right.

radio_off.pngradio_off.png

from top to bottom.

radio_off.pngradio_off.png

into the plane of the paper.

radio_off.pngradio_on.png

zero

Wrong

Score: 0 / 1

This particle could be

Your choiceExpected choiceAnswerComment
radio_off.pngradio_on.png

an alpha particle.

radio_off.pngradio_off.png

a beta particle.

radio_off.pngradio_off.png

a photon.

radio_off.pngradio_off.png

a neutron.

Wrong

Score: 0 / 1

M09/4/PHYSI/HPM/ENG/TZ1/23

The magnetic force on the current carrying wire is

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

zero.

radio_off.pngradio_on.png

into the plane of the paper.

radio_off.pngradio_off.png

out of the plane of the paper.

radio_off.pngradio_off.png

at an angle θ to the direction of the magnetic field.

Wrong

Score: 0 / 1

Plane P is perpendicular to the wire. How many electrons pass through plane P in each second?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

`e/I`

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`(ve)/I`

radio_off.pngradio_off.png

`I/(ve)`

radio_off.pngradio_on.png

`I/(e)`

Wrong

Score: 0 / 1

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

Increasing the mass of the ion

radio_off.pngradio_on.png

Increasing the charge of the ion

radio_off.pngradio_off.png

Increasing the speed of the ion

radio_off.pngradio_off.png

Decreasing the magnetic flux density of the field

Wrong

Score: 0 / 1

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

`(Vt)/R`

radio_off.pngradio_off.png

`(Rt)/V^2`

radio_off.pngradio_off.png

RV2t

radio_off.pngradio_on.png

`(V^2t)/R`

Wrong

Score: 0 / 1

VR at a point R in an electric field and at another point S the electric potential is VS. Which of the following is the work done by the electric field on a point charge +q as it moves from R to S?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

VR-VS

 

radio_off.pngradio_on.png

q(VR-VS)

 

radio_off.pngradio_off.png

VS-VR

 

radio_off.pngradio_off.png

q(VS-VR)
 

Wrong

Score: 0 / 1

vX and in Y it is vY.

What is the value of the ratio `(vX)/(vY)?`

Your choiceExpected choiceAnswerComment
radio_off.pngradio_on.png

0.25

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0.50

radio_off.pngradio_off.png

2.00

radio_off.pngradio_off.png

4.00

Wrong

Score: 0 / 1

What is the radius of a copper wire with length `L/2` and resistance R?

 

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

2r

radio_off.pngradio_off.png

`sqrt2r`

radio_off.pngradio_on.png

`r/sqrt2`

radio_off.pngradio_off.png

`r/2`

Wrong

Score: 0 / 1

 

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

A

radio_off.pngradio_on.png

B

radio_off.pngradio_off.png

C

radio_off.pngradio_off.png

D

Wrong

Score: 0 / 1

R1 and R2, are connected in series with a cell of emf ε and negligible internal resistance.

Which expression gives the potential difference across the resistor of resistance R1?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_on.png

`(R_1/(R_1+R_2))epsi`

radio_off.pngradio_off.png

`((R_1+R_2)/R_1)epsi`

radio_off.pngradio_off.png

`(R_2/(R_1+R_2))epsi`

radio_off.pngradio_off.png

`((R_1+R_2)/R_2)epsi`

Wrong

Score: 0 / 1

What is the reading on the voltmeter?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_on.png

1.0 V

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1.7 V

radio_off.pngradio_off.png

4.0 V

radio_off.pngradio_off.png

5.0 V

Wrong

Score: 0 / 1

Which of the following electric fields could have caused the charged particle to follow the above path?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_on.png

radio_off.pngradio_off.png

radio_off.pngradio_off.png

radio_off.pngradio_off.png

Correct

Score: 0 / 0

 

Your choiceExpected choiceAnswerComment
radio_off.pngradio_on.png

A

radio_off.pngradio_off.png

B

radio_off.pngradio_off.png

C

radio_off.pngradio_off.png

D

Wrong

Score: 0 / 1

The ammeter has resistance equal to 1.0Ω and the voltmeter is ideal. What are the readings of the ammeter and the voltmeter?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

radio_off.pngradio_off.png

radio_off.pngradio_on.png

radio_off.pngradio_off.png

Wrong

Score: 0 / 1

-7μC and +2μC, are at a fixed distance apart. At which point is it possible for the electric field strength to be zero?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

A

radio_off.pngradio_off.png

B

radio_off.pngradio_off.png

C

radio_off.pngradio_on.png

D

Wrong

Score: 0 / 1

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

radio_off.pngradio_off.png

radio_off.pngradio_off.png

radio_off.pngradio_on.png

Wrong

Score: 0 / 1

An electron enters the field with a velocity v in the direction shown. The electron is moving in the plane of the paper. The path followed by the electron will be

Your choiceExpected choiceAnswerComment
radio_off.pngradio_on.png

parabolic.

radio_off.pngradio_off.png

in the direction of E.

radio_off.pngradio_off.png

in the direction of v.

radio_off.pngradio_off.png

circular.

Wrong

Score: 0 / 1

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

radio_off.pngradio_off.png

radio_off.pngradio_off.png

radio_off.pngradio_on.png

Wrong

Score: 0 / 1

What is the direction of the electron flow in P and the direction of the electron flow in Q?

 

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

radio_off.pngradio_on.png

radio_off.pngradio_off.png

radio_off.pngradio_off.png

Wrong

Score: 0 / 1

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

radio_off.pngradio_on.png

radio_off.pngradio_off.png

radio_off.pngradio_off.png

Wrong

Score: 0 / 1

The slider on the potentiometer is moved from P1 to P2. Which graph shows the variation of the voltmeter V reading with slider distance d?

Your choiceExpected choiceAnswerComment
radio_off.pngradio_off.png

radio_off.pngradio_off.png

radio_off.pngradio_on.png

radio_off.pngradio_off.png

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