The reactance of a coil when used in the domestic ac power supply (220 volts, 50 cycles per second) is 50 ohms. The inductance of the coil is nearly
Text Solution
Verified by ExpertsThe correct answer is:
D
In a coil the product of angular frequency 
and inductance 
is known as the reactance of the coil or inductive reactance and is denoted by 
.
Thus, 
where 
is frequency.
Putting the numerical values from the question, we have
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