1
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

As shown in the figure, a dielectric of constant $K$ is placed between the plates of a parallel plate capacitor and is charged to a potential $V$ using a battery. If the dielectric is pulled out after disconnecting the battery from the capacitor, the final potential difference across the plates of the capacitor is

TG EAPCET 2025 (Online) 2nd May Morning Shift Physics - Capacitor Question 16 English
A

$\left(1+\frac{1}{K}\right) 2 V$

B

$2 K V$

C

$\frac{2 V}{\left(1+\frac{1}{K}\right)}$

D

$\frac{V}{2}\left(1+\frac{1}{K}\right)$

2
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The drift speed of electrons in a material is found to be $0.3 \mathrm{~ms}^{-1}$ when an electric field of $2 \mathrm{Vm}^{-1}$ is applied across it. The electron mobility (in $\mathrm{m}^2 \mathrm{~V}^{-1} \mathrm{~s}^{-1}$ ) in the material is

A

$60 \times 10^{-2}$

B

$15 \times 10^{-2}$

C

$1350 \times 10^6$

D

$5400 \times 10^6$

3
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The power of an electric motor is 242 W when connected to a 220 V supply. When the motor is operated at 200 V , the current drawn by it is

A

1.21 A

B

1.1 A

C

1.5 A

D

1 A

4
TG EAPCET 2025 (Online) 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A proton and an alpha particle moving with equal speeds enter normally into a uniform magnetic field. The ratio of times taken by the proton and the alpha particle to make one complete revolution in the magnetic field is

A

$1: \sqrt{2}$

B

$1: 2$

C

$\sqrt{2}: 1$

D

$2: 1$

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