1
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

LC series resonant circuit produces resonant frequency ' $f$ '. If ' $L$ ' is tripled and ' $C$ ' is increased by $3 C$, the resonant frequency will be

A
$\frac{\mathrm{f}}{3}$
B
$\frac{\mathrm{f}}{2 \sqrt{3}}$
C
$\mathrm{6 f}$
D
$\frac{\mathrm{f}}{2 \sqrt{2}}$
2
MHT CET 2024 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

When a capacitor is connected in series LR circuit, the alternating current flowing in the circuit

A
is zero.
B
increases.
C
decreases.
D
remain constant.
3
MHT CET 2024 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

An alternating current is given by $\mathrm{I}=100 \sin (50 \pi \mathrm{t})$. How many times will the current become zero in one second?

A
50 times
B
25 times
C
40 times
D
100 times
4
MHT CET 2024 4th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A coil of self inductance L is connected in series with a bulb B and an a.c. source. Brightness of the bulb decreases when

A
frequency of a.c. source is decreased.
B
number of turns in the coil is reduced.
C
a capacitance of reactance $\left(\mathrm{X}_{\mathrm{L}}-\mathrm{X}_{\mathrm{C}}\right)$ is included in the same circuit.
D
an iron rod is inserted in the coil.
MHT CET Subjects
EXAM MAP