Electrostatics Test

Result

Electrostatics Test - 126

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Question 1
4 / -1

A condenser having a capacity of 6µF is charged to 100 Vand is then joined to an uncharged condenser of 14µF and then removed. The ratio of the charges on 6µF and14µF and the potential of 6µF will be

A

B

C

D

Solution
Question 2
4 / -1

In the circuit shown in the figure, the potential difference across the 4.5 µF capacitor is

A
8/3 volts

B
4 volts

C
6 volts

D
8 volts

Solution
Question 3
4 / -1

A capacitor 4µF charged to 50 V is connected to another capacitor of 2µF charged to 100V with plates of like charges connected together. The total energy beforeand after connection in multiples of (10^–2J) is

A
1.5 and 1.33

B
1.33 and 1.5

C
3.0 and 2.67

D
2.67 and 3.0

Solution
Question 4
4 / -1

Two capacitors of 3 pF and 6 pF are connected in series and a potential difference of 5000 V is applied across the combination. They are then disconnected and reconnected in parallel. The potential between the plates is

A
2250 V

B
2222 V

C
2.25 × 10⁶ V

D
1.1 × 10⁶ V

Solution
Question 5
4 / -1

To identical parallel plate capacitors are connected in series to a battery of 100 V. A dielectric slab of dielectric constant 4.0 is inserted between the plates of second capacitor. The potential difference across the capacitors will now be respectively

A
50 V, 50 V

B
80 V, 20 V

C
20 V, 80 V

D
75 V, 25 V

Solution
Question 6
4 / -1

Four capacitors are connected as shown in the equivalent capacitance between the points P and Q is

A

B

C

D

Solution
Question 7
4 / -1

The total capacity of the system of capacitors shown is in the adjoining figure between the points A and B is

A
1 µF

B
2 µF

C
3 µF

D
4 µF

Solution
Question 8
4 / -1

A condenser of capacity C₁ is charged to a potential V₀. The electrostatic energy stored in it is U₀. It is connected to another uncharged condenser of capacity C₂ in parallel. The energy dissipated in the process is

A

B

C

D

Solution
Question 9
4 / -1

Three capacitors each of 6µF are available. The minimum and maximum capacitances which many be obtained are

A
6µF, 18µF.

B
3µF , 12µF

C
2µF , 12µF

D
2µF , 18µF
Question 10
4 / -1

Four capacitors are connected in a circuit as shown in the figure. The effective capacitance in pF between points A and B will be

A

B
4

C
5

D
18

Solution