Electricity Quiz - Set 3

Quiz
•
Physics
•
10th Grade
•
Hard
Brad Moore
Used 1+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component does this circuit symbol represent?
diode
LED
LDR
variable resistor
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the equation that links current, potential difference, and power?
potential difference =
potential difference = power × current
power =
power = potential difference × current
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the unit for power?
coulomb (C)
ohm (Ω)
volt (V)
watt (W)
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A current of 5A passes through a variable resistor with a resistance of 12Ω. What is the potential difference across the resistor?
2.4V
60V
240V
300V
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which statement does not apply to a diode?
It is used to convert an alternating current into a direct current
It allows current to flow in one direction only
It can be used to vary the resistance of a circuit
It has very high resistance in the reverse direction
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the potential difference of the UK mains electricity supply?
12V
50V
230V
450V
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Three lamps are connected in series with a battery. Lamp 1 has a resistance of 10Ω, lamp 2 has a resistance of 8Ω and lamp 3 has a resistance of 12Ω. What is the total resistance of the circuit?
30Ω
12Ω
8Ω
6Ω
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