1
TG EAPCET 2024 (Online) 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A conductor of length 1.5 m and area of cross-section $3 \times 10^{-5} \mathrm{~m}^2$ has electrical resistance of $15 \Omega$.

The current density in the conductor for an electric field of $21 \mathrm{Vm}^{-1}$ is

A
$0.7 \times 10^6 \mathrm{Am}^{-2}$
B
$0.7 \times 10^{-6} \mathrm{Am}^{-2}$
C
$0.7 \times 10^{-5} \mathrm{Am}^{-2}$
D
$0.7 \times 10^5 \mathrm{Am}^{-2}$
2
TG EAPCET 2024 (Online) 10th May Morning Shift
MCQ (Single Correct Answer)
+1
-0
The relation between the current $i$ (in ampere) in a conductor and the time $t$ (in second) is $i=12 t+9 t^2$. The charge passing through the conductor between the times $t=2 \mathrm{~s}$ and $t=10 \mathrm{~s}$ is
A
3720 C
B
3648 C
C
3600 C
D
3552 C
3
TG EAPCET 2024 (Online) 9th May Evening Shift
MCQ (Single Correct Answer)
+1
-0
The potential difference between the ends of a straight conductor of length 20 cm is 16 V . If the drift speed of the electrons is $2.4 \times 10^{-4} \mathrm{~ms}^{-1}$, the electron mobility in $\mathrm{m}^2 \mathrm{~V}^{-1} \mathrm{~s}^{-1}$ is
A
$3.6 \times 10^{-6}$
B
$2.4 \times 10^{-6}$
C
$2 \times 10^{-6}$
D
$3 \times 10^{-6}$
4
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
TS EAMCET Subjects
EXAM MAP