A transformer has 400 turns of wire in the primary coil a...
A transformer has 400 turns of wire in the primary coil and 40 turns in the secondary col. If the input voltage is 150 volts. Calculate the magnitude of the output voltage
150V
55V
36V
15V
Correct answer is D
\(\frac{ES}{EP} = \frac{Ns}{Np} = \frac{Es}{150} = \frac{40}{400}\)
Es = \(\frac{150 \times 40}{400}\)
= 15V
Which of the following are contact forces? I. Force of tension II. Force of fiction, III. Magne...
The knowledge of surface tension is applied in the following areas except in ...
In a series R - C circuit, the resistance of the resistor is 4 Ω and capacitive reactance is 3...
A swinging pendulum between the rest position and its maximum displacement possesses ...
The resistance of a 40W car head lamp, drawing current from a 12V battery is ____. ...