Question

The number of turns in the primary and secondary winding of a transformer are $1000$ and $3000$ respectively. If $80V$ AC is supplied to the primary coil of the transformer, then the potential difference per turn of the secondary coil would be

• A. $240V$
• B. $24V$
• C. $2.4V$
• D. $0.08V$

Answer 1

The correct option is D $0.08V$

Given,
$N_1=1000,N_2=3000V_1=80V,V_2=?$

Transformer turn ratio,
$a=\frac{N_1}{N_2}=\frac{V_1}{V_2}$
Potential difference per turn across secondary winding,
$\frac{{\text{V}}_{\text{2}}}{{\text{N}}_{\text{2}}}=\frac{{\text{V}}_{\text{1}}}{{\text{N}}_{\text{1}}}=\frac{80}{1000}=0.08V$