PHYSICS FOR STUDENTS
ALTERNATIVE CURRENT MCQS ANS ANSWERS
MCQ1: 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
MCQ2: generators at power station produce electric power at voltage
A. 45 kw
B. 50 kw
C. 60 kw
D. 25 kw
MCQ3 Equation which measures alternative voltage is
A. V sin w
B. Sin t
C. V=IR
MCQ4 in transformer, alternative current is induced in
A. Centrifugal force
B. Centripetal force
C. Gravitational force
D. Magnetic force
MCQ 5 if we have a positive and negative charge, then force between them is
A. Positive
B. Negative
C. Zero
D. infinite
MCQ 6 electric forces exerted two-point charge on each other is inversely proportional to
A. sum of their charges
B. product of their charges
C. distance between them
ALTERNATIVE CURRENT MCQS ANS ANSWERS
MCQ1: 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
MCQ2: generators at power station produce electric power at voltage
A. 45 kw
B. 50 kw
C. 60 kw
D. 25 kw
MCQ3 Equation which measures alternative voltage is
A. V sin w
B. Sin t
C. V=IR
MCQ4 in transformer, alternative current is induced in
A. Centrifugal force
B. Centripetal force
C. Gravitational force
D. Magnetic force
MCQ 5 if we have a positive and negative charge, then force between them is
A. Positive
B. Negative
C. Zero
D. infinite
MCQ 6 electric forces exerted two-point charge on each other is inversely proportional to
A. sum of their charges
B. product of their charges
C. distance between them
