Electro Magnetic Induction And Alternating Currents Question 482
Question: A resistance less ring has 2 bulbs A and B rated at 2V, 19 W and 2V, 29 W respectively. The ring encloses an ideal solenoid whose magnetic field is as shown. The radius of solenoid is 1 m and the number of turns/length =1000/m. The current changes at rate of 9 A/sec Find the value of P if power dissipated in bulb B is
Options:
A) 4
B) 6
C) 8
D) 11
Show Answer
Answer:
Correct Answer: A
Solution:
-
Resistance of bulb
Resistance of bulb
