Current Electricity Test

Result

Current Electricity Test - 51

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Weekly Quiz Competition

Question 1
4 / -1

A parallel combination of two resistors of 1 Ω each, is connected in series with a 1.5 Ω resistor. The total combination is connected across a 10 V battery. The current flowing in the circuit is

A
5 A

B
20 A

C
0.2 A

D
0.4 A

Solution
Question 2
4 / -1

In the circuit shown, the current through 8 ohm is same before and after connecting E. The value of E is

A
12 V

B
6 V

C
4 V

D
2 V

Solution
Question 3
4 / -1

In the adjoining circuit, the battery E₁ has an e.m.f. of 12 volt and zero internal resistance while the battery E has an e.m.f. of 2 volt. If the galvanometer G reads zero, then the value of the resistance X in ohm is

A
10

B
100

C
500

D
200

Solution
Question 4
4 / -1

A battery of e.m.f E produces currents I₁ and I₂ when external resistances R₁ and R₂ internal resistance of the battery is

A

B

C

D

Solution
Question 5
4 / -1

By a cell a current of 0.9 A flows through 2 ohm resistor and 0.3 A through 7 ohm resistor. The internal resistance of the cell is

A
0.5 Ω

B
1.0 Ω

C
1.2 Ω

D
2.0 Ω

Solution
Question 6
4 / -1

Two cells, each of e.m.f. E and internal resistance r are connected in parallel between the resistance R. The maximum energy given to the resistor will be, only when

A
R = r/2

B
R = r

C
R = 2r

D
R = 0

Solution
Question 7
4 / -1

Kirchhoff s second law is based on the law of conservation of

A
Charge

B
Energy

C
Momentum

D
Sum of mass and energy
Question 8
4 / -1

The potential difference across the terminals of a battery is 50 V when 11A current is drawn and 60 V when 1A current is drawn. The e.m.f. and the internal resistance of the battery are

A
62 V, 2 Ω

B
63 V, 1 Ω

C
61 V, 1 Ω

D
64 V, 2 Ω

Solution
Question 9
4 / -1

In the circuit shown, A and V are ideal ammeter and voltmeter respectively. Reading of the voltmeter will be

A
2 V

B
1 V

C
0.5 V

D
Zero
Question 10
4 / -1

A 5 V battery with internal resistance 2 Ω and a 2 V battery with internal resistance 1 Ω are connected to a 10 Ωresistor as shown in the figure. The current in the 10 SI resistor is

A
0.03 A P₁ to P₂

B
0.03 A P₂ to P₁

C
0.27 A P₁ to P₂

D
0.27 A P₂ to P₁

Solution