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Electricity and Circuits Quiz

Authored by Sugeng Riyanto

Physics

7th Grade

Electricity and Circuits Quiz
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27 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the unit of electric charge?

Ampere

Volt

Coulomb

Ohm

Joule

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the formula for electric current?

I = Q/t

I = V/R

I = P/V

I = nqvA

I = W/Q

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the correct formula for resistance?

R = V/I

R = I/V

R = P/I

R = ρA/L

R = V^2/P

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the unit of resistance?

Ampere

Volt

Ohm

Joule

Coulomb

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is the correct formula for power dissipated in a resistor?

P = VI

P = I^2R

P = V^2/R

All of the above

None of the above

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the term "quantisation of charge" mean?

Charge can only exist in discrete amounts.

Charge is continuous and can take any value.

Charge is always negative.

Charge is always positive.

Charge is conserved.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the relationship between current (I), number density of charge carriers (n), and drift velocity (v)?

I = nqvA

I = nq/vA

I = q/nvA

I = nv/qA

I = nA/qv

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