Electrostatics Test

Result

Electrostatics Test - 67

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Weekly Quiz Competition

Question 1
4 / -1

Two capacitors of capacities C₁ and C₂ are charged to voltages V₁ and V₂ respectively. There will be no exchange of energy in connecting them in parallel, if

A
C₁ = C₂

B
C₁V₁ = C₂V₂

C
V₁ = V₂

D
Question 2
4 / -1

A capacitor of capacity C₁ is charged to the potential of V₀. On disconnecting with the battery, it is connected with a capacitor of capacity C₂ as shown in the adjoining figure. The ratio of energies before and after the connection of switch S will be

A
(C₁ + C₂) / C₁

B
C₁ / (C₁ + C₂)

C
C₁C₂

D
C₁ / C₂

Solution
Question 3
4 / -1

Four capacitors of each of capacity 3 µF are connected as shown in the adjoining figure. The ratio of equivalent capacitance between A and B and between A and C will be

A
4 : 3

B
3 : 4

C
2 : 3

D
3 : 2

Solution
Question 4
4 / -1

Three equal capacitors, each with capacitance C are connected as shown in figure. Then the equivalent capacitance between A and B is

A
C

B
3C

C

D

Solution
Question 5
4 / -1

In the adjoining figure, four capacitors are shown with their respective capacities and the P.D. applied. The charge and the P.D. across the 4 0 capacitor will be

A
600 µC ; 150 volts

B
300 µC ; 75 volts

C
800 µC ; 200 volts

D
580 µC ;145 volts

Solution
Question 6
4 / -1

A 4µF condenser is connected in parallel to another condenser of 8µF. Both the condensers are then connected in series with a 12µF condenser and charged to 20 volts. The charge on the plate of 4µF condenser is

A
3.3 µC

B
40 µC

C
80 µC

D
240 µC

Solution
Question 7
4 / -1

A capacitor having capacitance C is charged to a voltage V. It is then removed and connected in parallel with another identical capacitor which is uncharged. The new charge on each capacitor is now

A
CV

B
CV/2

C
2CV

D
CV/4
Question 8
4 / -1

Four capacitors are connected in a circuit as shown in the following figure. Calculate the effective capacitance between the points A and B

A

B

C

D

Solution
Question 9
4 / -1

Effective capacitance between A and B in the figure shown is (all capacitance are in µF)

A

B

C

D

Solution
Question 10
4 / -1

The resultant capacitance between A and B in the following figure is equal to

A
1 µF

B
3 µF

C
2 µF

D
1.5 µF

Solution