1
TG EAPCET 2024 (Online) 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

The potential difference $V$ across the filament of the bulb shown in the given Wheatstone bridge varies as $V=i(2 i+1)$, where $i$ is the current in ampere through the filament of the bulb. The emf of the battery $V_a$, so that the bridge become balanced is

TG EAPCET 2024 (Online) 9th May Evening Shift Physics - Current Electricity Question 11 English
A
10 V
B
15 V
C
20 V
D
25 V
2
TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
When the temperature of a wire is increased from 303 K to 356 K , the resistance of the wire increases by $10 \%$. The temperature coefficient of resistance of the material of the wire is
A
$2 \times 10^{-3 \circ} \mathrm{C}^{-1}$
B
$2 \times 10^{-4}{ }^{\circ} \mathrm{C}^{-1}$
C
$1.1 \times 10^{-3 \circ} \mathrm{C}^{-1}$
D
$11 \times 10^{-4} \mathrm{C}^{-1}$
3
TG EAPCET 2024 (Online) 9th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Three resistors of resistances $10 \Omega, 20 \Omega$ and $30 \Omega$ are connected as shown in the figure. If the points $A, B$ and $C$ are at potentials $10 \mathrm{~V}, 6 \mathrm{~V}$ and 5 V respectively, then the ratio of the magnitudes of the currents through $10 \Omega$ and $30 \Omega$ resistors is

TG EAPCET 2024 (Online) 9th May Morning Shift Physics - Current Electricity Question 13 English

A
$1: 3$
B
$3: 1$
C
$1: 2$
D
$2: 1$
4
TS EAMCET 2023 (Online) 12th May Evening Shift
MCQ (Single Correct Answer)
+1
-0

A potentiometer balances at 44 cm when a cell of internal resistance $1 \Omega$ is in the secondary circuit. To obtains the balancing point at 40 cm , the resistance to be connected parallel to cell is

A
$20 \Omega$
B
$10 \Omega$
C
$30 \Omega$
D
$5 \Omega$
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