Current Electricity-Electrical Energy and Power (BITSAT Physics): Questions 1 - 6 of 7

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Question number: 1

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

If current flowing in a conductor changes by , then power will change by –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 2

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

electric heater operates on a line, then the rate at which it develops heat in watts will be –

Choices

Choice (4) Response

a.

670

b.

810

c.

1210

d.

1310

Question number: 3

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

Two identical batteries, each of emf and internal resistance by passing a current through it. The maximum power that can be developed across using these batteries is –

A circuit diagram three resistors and two batteries

A Circuit Diagram Three Resistors and Two Batteries

In circuit diagram three resistors and two batteries are shown.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 4

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

Kinetic energy of an electron accelerated in a potential difference of is

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 5

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

A heater coil connected to a supply of a dissipating some power . The coil is cut into half and the two halves are connected in parallel. The heater now dissipates a power the ration of power is –

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 6

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

Three bulbs of , and are arranged in series with . Which bulb has minimum resistance?

Choices

Choice (4) Response

a.

b.

c.

d.

Equal in all bulbs

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