Current Electricity-Electrical Energy and Power (BITSAT Physics): Questions 1 - 5 of 7

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 382 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 250.00 or

Question number: 1

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

Equation electric heater operates on a Equation 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 Equation and internal resistance Equation by passing a current through it. The maximum power that can be developed across Equation 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.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 4

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 5

» Current Electricity » Electrical Energy and Power

MCQ▾

Question

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

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

f Page
Sign In