# Test Your Understanding Of Electrical Quantities With This Quiz

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| By Otohill
O
Otohill
Community Contributor
Quizzes Created: 1 | Total Attempts: 150
Questions: 15 | Attempts: 150

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Questions and Answers
• 1.

### Q1

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
B. B
Explanation
Longer length = higher resistance thinner wire = larger resistance

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• 2.

### Q2

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
B. B
Explanation
Resistance should be the same for any of them, so use V=IR to find the resistance for each row, A,C,D all get a resistance of 2.4 ohms. B is different

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• 3.

### Q3

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
D. D
Explanation
The whole of rod P is negative (not just one side) so its always going to be repelled by nagative Q

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• 4.

### Q4

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
B. B
Explanation
Largest current will come from wire of lowest resistance, so short length and thick

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• 5.

### Q5

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
A. A
Explanation
When rubbed together one object will GAIN electrons (negative) and the other LOSE electrons (positive) opposite charges, and they would attract

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• 6.

### Q6

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
C. C
Explanation
need to increase length AND make it thinner (if make shorter but thinner these have opposite effects as shorter reduces resistance)

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• 7.

### Q7

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
A. A
Explanation
Meter x must be current as in series, Y voltage as around the resistor.
Normally voltages are larger than currents so thats why C is not right (also can use V=IR to check)

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• 8.

### Q8

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
B. B
Explanation
Static needs INSULATORS, glass and plastic are only options (electrostatic = static)

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• 9.

### Q9

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
C. C
Explanation
Bright light - lowest resistance possible, short and large thickness. Dimmest is opposite

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• 10.

### Q10

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
C. C
Explanation
Only ever should be electrons moving, if rod is negative it means the cloth must be positive

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• 11.

### Q11

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
C. C
• 12.

### Q12

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
B. B
Explanation
Balloon x repels means has same charge as the negative one. y attract so opposite charge to negative balloon

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• 13.

### Q13

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
C. C
Explanation
Voltmeter reads voltages, emf and pd are voltages

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• 14.

### Q14

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
C. C
• 15.

### Q15

• A.

A

• B.

B

• C.

C

• D.

D

Correct Answer
B. B
Explanation
emf is a voltage

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• Current Version
• May 06, 2024
Quiz Edited by
ProProfs Editorial Team
• Feb 03, 2020
Quiz Created by
Otohill

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