emf and internal resistance

emf and internal resistance

Assessment

Quiz

Physics

10th - 11th Grade

Hard

Created by

Chad Harrison

Used 1+ times

FREE Resource

Student preview

quiz-placeholder

14 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

It is an energy supply by a battery/ electrical source to a coulumb unit of charge.

This refers to

Potential difference

Internal resistance

Electromotive force

Current

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image
The cell has internal resistance, r, and electromotive force of 1.5 V.
What is the reading of voltmeter when the switch is closed?
More than 3.0 V
Less than 1.5 V
More than 1.5 V
1.5 V

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A battery has an e.m.f of 6.0 V. When it is connected to an external resistor, the potential different is 2.6 V and the current is 0.6 A. 
What is the value of the internal resistance?
3.4 Ω
4.3 Ω
4.4 Ω
5.7 Ω

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Media Image
What is the internal resistance of the battery in the circuit?
9.40 Ω
11.50 Ω
12.50 Ω
13.50 Ω

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which is a true statement?

No sources of emf have internal resistance

Some sources of emf have internal resistance

Most sources of emf have internal resistance

All sources of emf have internal resistance

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is emf?

the electro motive "force" or the force on electrons

the electromotive "force" or the Voltage of a cell measured when there is no current flowing

the electromotive "field" or the Voltage of a cell measured when there is no current

the electromotive "force" or Voltage of a cell measured when connected to a circuit

7.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Correct

 \epsilon=V+Ir  

 \epsilon=I\left(R+r\right)  

 ϵ=V\epsilon=V  

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?