A10 ENI 2024 T2 SBQ3 Revision

Quiz
•
Physics
•
10th Grade
•
Medium

Hadi Hussein
Used 2+ times
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What is the primary function of a transformer?
To convert electrical energy into mechanical energy
To convert mechanical energy into electrical energy
To step up or step down alternating current/voltage
To store electrical energy
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
In a step-up transformer, compared to the input voltage, the output voltage is:
Lower
Equal
Higher
Constant
3.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Which material is commonly used as the core of a transformer to enhance its efficiency?
Copper
Silver
Aluminum
Iron
4.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What is the principle behind the operation of a transformer?
Electromagnetic induction
Photoelectric effect
Quantum tunneling
Doppler effect
5.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What happens to the current in a step-up transformer compared to the input current?
It increases
It decreases
It remains the same
It fluctuates
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What is the efficiency of an ideal transformer?
0%
50%
100%
It depends on the input voltage
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
What happens to the power in a transformer compared to the input power?
It increases
It decreases
It remains the same
It fluctuates
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