The number of turns in the primary and the secondary coils of a transformer are 1000 and 3000 respectively. If the primary of the coil is connected to 80 V ac, the potential difference per turn of the secondary coil is

Question

The number of turns in the primary and the secondary coils of a transformer are 1000 and 3000 respectively. If the primary of the coil is connected to 80 V ac, the potential difference per turn of the secondary coil is (A) 240 V (B) 24 V (C) 0.24 V (D) 0.08 V

Tardigrade Admin · Accepted Answer

Here, Np = 1000, Ns = 3000 Vp = 80 V As (Np/Ns) = (Vp/Vs) Vs = Vp (Ns/Np) = (80 V) (3000/1000) = 240 V The potential difference per turn of the secondary coil is = (Vs/Ns) = (240 V/3000) = 0.08 V

Q. The number of turns in the primary and the secondary coils of a transformer are $1000$ and $3000$ respectively. If the primary of the coil is connected to $80 V$ ac, the potential difference per turn of the secondary coil is

$240 V$

$24 V$

$0.24 V$

$0.08 V$

Here, $N_{p} = 1000, N_{s} = 3000$
$V_{p} = 80 V$
As $\frac{N _{p}}{N _{s}} = \frac{V _{p}}{V _{s}}$
$V_{s} = V_{p} \frac{N _{s}}{N _{p}}$
$= (80 V) \frac{3000}{1000} = 240 V$
The potential difference per turn of the secondary coil is
$= \frac{V _{s}}{N _{s}} = \frac{240 V}{3000} = 0.08 V$

Q. The number of turns in the primary and the secondary coils of a transformer are 1000 and 3000 respectively. If the primary of the coil is connected to 80V ac, the potential difference per turn of the secondary coil is

240V

24V

0.24V

0.08V