Capacitor 1st July

Capacitor 1st July

12th Grade

11 Qs

quiz-placeholder

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Capacitor 1st July

Capacitor 1st July

Assessment

Quiz

Physics

12th Grade

Hard

Created by

sonu g

Used 1+ times

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11 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Which of the following statement is true?

Electrostatic force is a conservative force.

Potential at a point is the work done per unit charge in bringing a charge from any point to infinity

Electrostatic force is non-conservative

Potential is the product of charge and work.

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

Equipotential surfaces

are closer in regions of large electric fields compared to regions of lower electric fields.

will be more crowded near sharp edges of a conductor.

will always be equally spaced.

both (a) and (b) are correct.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A proton moves 10 cm on a path in the direction of a uniform electric field of strength 3.0 N/C. How much work is done on the proton by the electrical field?

4.8 x 10-20 J

-4.8 x 10-20 J

.6 x 10-20 J

zero

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A 9.0-V battery is connected between two parallel metal plates 4.0 mm apart. What is the magnitude of the electric field between the plates?

2.3 x 103 N/C

9.0 N/C

2.3 N/C

0.75 x 10-6 N/C

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A parallel-plate capacitor has a capacitance of 20 µF. What potential difference across the plates is required to store 7.2 x 10-4 C on this capacitor?

36 V

2.2 x 10-2 V

1.4 x 10-8 V

68 V

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Increasing the separation of the two charged parallel plates of a capacitor, which are disconnected from a battery, will produce what effect on the capacitor?

increase charge

decrease charge

increase capacitance

decrease capacitance

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Three capacitors of 1.0 µF, 1.5 µF, and 2.0 µF are connected in series. Find the combined capacitance.

4.5 µF

4.0 µF

2.2 µF

0.46 µF

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