Current Electricity-Electric Current (KVPY Stream-SA (Class 11) Physics): Questions 1 - 4 of 4

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Question number: 1

» Current Electricity » Electric Current

MCQ▾

Question

Consider a circuit below. The bulb will light up if

Circuit diagram consist of three switches and a bulb

Circuit Diagram Consist of Three Switches and a Bulb

Figure shows a circuit of three switches and a bulb.

Choices

Choice (4) Response

a.

S 1, S 2 and S 3 all are closed.

b.

S 1 is closed but S 2 and S 3 are open

c.

S 2 and S 3 are closed but S 1 is open

d.

S 1 and S 3 are closed but S 2 is open

Question number: 2

» Current Electricity » Electric Current

Appeared in Year: 2012

MCQ▾

Question

Which of the following statements is true about the flow of electrons in an electric circuit?

Choices

Choice (4) Response

a.

Electrons always flow from higher to lower potential

b.

Electrons always flow from lower to higher potential

c.

Electrons flow from higher to lower potential, except through power sources

d.

Electrons flow from lower to higher potential except through power sources

Question number: 3

» Current Electricity » Electric Current

MCQ▾

Question

A current of 0.3 A flows through a 30 Ω resistor represented by the circuit diagram. The current in the 100 Ω resistor is,

Circuit diagram of combination of four resistors

Circuit Diagram of Combination of Four Resistors

In figure circuit diagram of combination of four resistors is shown. 0.3 A current is passing through 30 (ohm) resistor. Current i is passing through parallel combination of 25 (ohm) and 15 (ohm) resistors.

Choices

Choice (4) Response

a.

1.26 A

b.

1.66 A

c.

0.56 A

d.

0.89 A

Question number: 4

» Current Electricity » Electric Current

MCQ▾

Question

The current in 2Ω resistance in the circuit show below is,

Circuit diagram having combination of four resistors

Circuit Diagram Having Combination of Four Resistors

In figure combination of four resistors. A battery and a capacitor is also connected in the circuit.

Choices

Choice (4) Response

a.

0.33 A

b.

0.45 A

c.

0.5 A

d.

1 A

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