Current Electricity (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics): Questions 7 - 10 of 25

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Question number: 7

» Current Electricity » Electrical Energy and Power

Appeared in Year: 2011

MCQ▾

Question

In the following circuit, the 1 Ω resistor dissipates power P. If the resistor is replaced by 9 Ω, the power dissipated in it is

Circuit diagram of two resistors and a battery (Circuit 1)

Circuit Diagram of Two Resistors and a Battery (Circuit 1)

Figure shows two resistors and battery connected in series.

Choices

Choice (4) Response

a.

3P

b.

9P

c.

Equation

d.

P

Question number: 8

» Current Electricity » Kirchhoff's Laws

Appeared in Year: 2011

MCQ▾

Question

Figure below shows a portion of an electric circuit with the currents in amperes and their directions. The magnitude and direction of the current in the portion PQ is

A portion of electric circuit Starting from P

A Portion of Electric Circuit Starting From P

Figure shows a portion of an electric circuit. The magnitude and direction of the current are also shown in figure.

Choices

Choice (4) Response

a.

4A from Q to P

b.

3A from P to Q

c.

6A from Q to P

d.

0A

Question number: 9

» 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: 10

» Current Electricity » Series and Parallel Combinations of Resistors

Appeared in Year: 2013

MCQ▾

Question

Consider the circuit shown in the figure below:

Circuit diagram of combination of 8 identical resistors

Circuit Diagram of Combination of 8 Identical Resistors

In figure circuit diagram of combination of eight identical resistors are shown.

All the resistors are identical. The ratio Equation is,

Choices

Choice (4) Response

a.

5

b.

6

c.

8

d.

4

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