Primary coil of a transformer is connected to 220 V A C . Primary and secondary turns of the transforms are 100 and 10 respectively. Secondary coil of transformer is connected to two series resistances as shown in figure. The output voltage V 0 is :

Question

Primary coil of a transformer is connected to 220 V A C . Primary and secondary turns of the transforms are 100 and 10 respectively. Secondary coil of transformer is connected to two series resistances as shown in figure. The output voltage V 0 is :, 7 V, 15 V, 44 V, 22 V

MARKS App · Accepted Answer

Ratio of EMF developed will be given by, ε p ε s = N p N s = 100 10 ⇒ ε s = 22 V Therefore, current in secondary circuit will be I = 22 22 × 10 3 = 1 mA Hence, potential drop across 7 kΩ will be V 0 = I × 7 kΩ = 7 V

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