1
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

As shown in the figure, in a Wheatstone's bridge, three resistances $P, Q$ and $R$ are connected in the three arms and the fourth arm is formed by two resistances $S_1$ and $S_2$ connected in parallel. The condition for the bridge to be balanced is

TS EAMCET 2023 (Online) 13th May Evening Shift Physics - Current Electricity Question 31 English

A

$\frac{P}{Q}=\frac{2 R}{S_1+S_2}$

B

$\frac{P}{Q}=\frac{R\left(\mathrm{~S}_1+\mathrm{S}_2\right)}{\mathrm{S}_1 \mathrm{~S}_2}$

C

$\frac{P}{Q}=\frac{R\left(\mathrm{~S}_1+\mathrm{S}_2\right)}{2 \mathrm{~S}_1 \mathrm{~S}_2}$

D

$\frac{P}{Q}=\frac{R}{S_1+S_2}$

2
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A current $i$ flows in an infinitely long, straight and thin walled pipe, then

A

the magnetic field at all the points inside the pipe is same, but not zero

B

the magnetic field at any point inside the pipe is zero

C

the magnetic field is zero only on the axis of the pipe

D

the magnetic field is different at different points inside the pipe

3
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A closely wound solenoid of 80 cm long has 5 layers of windings of 400 turns each. The diameter of the solenoid is 1.8 cm . If the current carried is 8 A , then the magnitude of the magnetic field inside the solenoid near its centre is approximately

A

$1.5 \times 10^{-2} \mathrm{~T}$

B

$2.5 \times 10^{-2} \mathrm{~T}$

C

$3.5 \times 10^{-2} \mathrm{~T}$

D

$4.5 \times 10^{-2} \mathrm{~T}$

4
TS EAMCET 2023 (Online) 13th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The period of oscillation of a bar magnet at a place is 2 s . At the same place, the period of oscillation of another identical bar magnet whose magnetic moment is 4 times so that of first magnet is

A

4 s

B

1 s

C

2 s

D

0.5 s

TS EAMCET Papers

All year-wise previous year question papers