iGCSE Physics Electrical resistance
Authored by George Mortley
Physics
10th Grade
NGSS covered
Used 47+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following links voltage, current and resistance?
V = I × A
R = V × A
V = I × R
R = I/V
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which is the unit of resistance?
amps
coulombs
volts
ohms
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A radio is supplied with 36 V. The current through the radio is 0.2 A. What is the resistance of the radio?
180 Ω
76 Ω
0.06 Ω
76 C
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
An electric shower is connected to the 230 V mains. The resistance of the shower is 120 Ω. What is the current through the wire for the shower?
0.2 A
2.0 A
0.5 A
5.0 A
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two resistors of resistance 7 Ω and 8 Ω respectively are placed in a series circuit. What is their total resistance?
8 Ω
15 Ω
56 Ω
0.9 Ω
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 12 V supply is connected to a series circuit containing two resistors which each have a resistance of 3 Ω. What is the current flowing through the circuit?
4 A
0.25 A
2 A
0.5 A
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following components follows Ohm’s law when at a constant temperature?
diode
LDR
resistor
thermistor
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