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

A charge $q$ is placed at the centre ' $O$ ' of a circle of radius $R$ and two other charges $q$ and $q$ are placed at the ends of the diameter $A B$ of the circle. The work done to move the charge at point $B$ along the circumference of the circle to a point $C$ as shown in the figure is

TG EAPCET 2025 (Online) 2nd May Evening Shift Physics - Electrostatics Question 34 English
A

$\frac{1}{4 \pi \varepsilon_0} \cdot \frac{q^2}{R}(\sqrt{2})$

B

zero

C

$\frac{1}{4 \pi \varepsilon_0} \cdot \frac{q^2}{R}\left(\frac{\sqrt{2}-1}{2}\right)$

D

$\frac{1}{4 \pi \varepsilon_0} \cdot \frac{q^2}{R}\left(\frac{1}{\sqrt{2}}\right)$

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

In a potentiometer experiment, a wire of length 10 m and resistance $5 \Omega$ is connected to a cell of emf 2.2 V . If the potential difference between two points separated by a distance of 660 cm on potentiometer wire is 1.1 V , then the internal resistance of the cell is

A

$1.6 \Omega$

B

$1.4 \Omega$

C

$1.2 \Omega$

D

$1 \Omega$

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

When the right gap of a metre bridge consists of two equal resistors in series, the balancing point is at 50 cm . When one of the resisters in the right gap is removed and is connected in parallel to the resistor in the left gap, the balancing point is at

A

60 cm

B

33.3 cm

C

25 cm

D

40 cm

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

Two identical wires, carrying equal currents are bent into circular coils $A$ and $B$ with 2 and 3 turns respectively. The ratio of the magnetic fields at the centres of the coils $A$ and $B$ is

A

$4: 9$

B

$2: 3$

C

$9: 4$

D

$3: 2$

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