1
KCET 2026
MCQ (Single Correct Answer)
+1
-0
In Faraday-Henry's experiment, a coil is connected to a galvanometer. For the deflection of pointer in the galvanometer, which of the following statement/s is/are WRONG?
The pointer in the galvanometer deflects -
(a) When the bar magnet is moved towards the stationary coil along its axis.
(b) When the bar magnet is moved away from the stationary coil along its axis.
(c) When the coil is moved towards the stationary bar magnet along its axis.
(d) When the coil and the magnet are moved without relative motion between them.
A
a and b
B
b and c
C
a, b and c
D
Only d
2
KCET 2026
MCQ (Single Correct Answer)
+1
-0
A small town with a demand of $900\text{ kW}$ of electric power at $220\text{ V}$ is situated $20\text{ km}$ away from an electric power generating station. Each wire of the two-wire transmission line has a resistance per unit length of $5 \times 10^{-4} \, \Omega\text{ m}^{-1}$. The town gets power from the line through a $45000\text{ V}$ to $220\text{ V}$ step-down transformer at a substation in the town. The line power loss in the form of heat is:
A
$4$ kW
B
$8$ kW
C
$40$ kW
D
$80$ kW
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
A light bulb rated $100$ W is connected to an AC source of $220$ V, $50$ Hz. The rms current through the bulb is
A
$0.454$ A
B
$0.545$ A
C
$2.20$ A
D
$0.22$ A
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
In a circuit containing a pure resistor connected to an AC source,
A
Voltage leads the current by $90^\circ$
B
Current leads the voltage by $90^\circ$
C
Voltage and current are in same phase with each other
D
Current leads the voltage by $180^\circ$