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41.
If a secondary coil has 40 turns, and, a primary coil with 20 turns is
charged with 50 V of potential difference, then the potential difference in the
secondary coil would be
- A.50 V in secondary coil
- B.25 V in secondary coil
- C.60 V in secondary coil
- D.100 V in secondary coil
- Answer
- Report
Answer : [D]
42.
Generators at a power station produce electric power at voltage
- A.45 kW
- B.50 kW
- C.60 kW
- D.25 kW
- Answer
- Report
Answer : [D]
43.
Equation which measures alternating voltage is
- A.Vsin ω
- B.sin t
- C.Vo sinωt
- D.V=IR
- Answer
- Report
Answer : [C]
44.
In transformer, alternating current is induced in
- A.primary coil
- B.secondary coil
- C.iron core
- D.resistor
- Answer
- Report
Answer : [B]
45.
High voltages lead to
- A.less power loss
- B.more power loss
- C.high current
- D.high resistance
- Answer
- Report
Answer : [A]
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