Physics — Test 17
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Question 1
An alternating current or voltage_____________________?
Question 2
Electromagnetic waves travel in free space with the speed of___________________?
Question 3
Waves emitted from the antenna are__________________?
Question 4
If capacitance of L-C circuit is made four times then frequency of the circuit becomes___________________?
Question 5
The value of the steady current which when flowing through the same resistor produces heat at the same rate as the mean rate of heat produced by the alternating current is__________________?
Question 6
An alternating current of the r.m.s value of 4.0 A and frequency 50Hz flows in a circuit containing a 10Ω resistor. The peak current is then ?
Question 7
A changing magnetic flux produces around itself an induced_______________?
Question 8
The direction of propagation of an electromagnetic waves is________________?
Question 9
Electromagnetic waves transport___________________?
Question 10
Electromagnetic waves emitted from antenna are________________?