# Current Electricity (KVPY (Kishore Vaigyanik Protsahan Yojana) Stream-SA (Class 11) Physics): Questions 20 - 23 of 25

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 253 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 200.00 or

## Question number: 20

» Current Electricity » Electrical Energy and Power

MCQ▾

### Question

In the following circuit, the 3 Ω resistor dissipates power Pi. If the resistor is replaced by 7 Ω, the power dissipated in it is Pf, then

### Choices

Choice (4) Response

a.

b.

c.

d.

Question does not provide sufficient data or is vague

## Question number: 21

» Current Electricity » Kirchhoff's Laws

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 AB is

### Choices

Choice (4) Response

a.

1 A from A to B

b.

2A from B to A

c.

3 A from B to A

d.

0A

## Question number: 22

» Current Electricity » Electrical Energy and Power

MCQ▾

### Question

If the current through a resistor in a circuit increases by 7%, the power dissipated by the resistor –

### Choices

Choice (4) Response

a.

Increases approximately by 49%

b.

Increases approximately by 14%

c.

Increases approximately by 7%

d.

Decreases approximately by 7%

## Question number: 23

» Current Electricity » Electric Current

MCQ▾

### Question

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

### Choices

Choice (4) Response

a.

0.33 A

b.

0.45 A

c.

0.5 A

d.

1 A

f Page