1
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
2
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 $180^\circ$
3
KCET 2026
MCQ (Single Correct Answer)
+1
-0
What range of electromagnetic spectrum is considered as light?
A
$1$ mm to $700$ nm
B
$400$ nm to $1$ nm
C
$400$ nm to $700$ nm
D
$1$ nm to $10^{-3}$ nm
4
KCET 2026
MCQ (Single Correct Answer)
+1
-0
Match the following Maxwell's equations:
(The symbols used here have their usual meanings)
List-IList-II
(a)Gauss' law for electrostatics(i)$\oint \vec{E} \cdot d\vec{A} = \dfrac{Q}{\varepsilon_0}$
(b)Gauss' law for magnetism(ii)$\oint \vec{B} \cdot d\vec{l} = \mu_0 \left[i_c + \varepsilon_0 \dfrac{d\phi_E}{dt}\right]$
(c)Faraday's law(iii)$\oint \vec{B} \cdot d\vec{A} = 0$
(d)Ampere-Maxwell's law(iv)$\oint \vec{E} \cdot d\vec{l} = -\dfrac{d\phi_B}{dt}$
A
a - i, b - iii, c - iv, d – ii
B
a - ii, b - iii, c - i, d – iv
C
a - i, b - ii, c - iii, d – iv
D
a - ii, b - iii, c - iv, d – i