1
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0

For the given electrical arrangement, what is the value of current I?

COMEDK 2021 Physics - Current Electricity Question 26 English

A
6A
B
5A
C
7A
D
8A
2
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

If voltage $$V=(200\pm 8)V$$ and current $$I=(20\pm0.5)A$$, then the percentage error in resistance R is

A
5.2%
B
25%
C
3%
D
6.5%
3
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

Point out the right statements about the validity of Kirchhoff’s junction rule,

A
it is based on conservation of charge.
B
outgoing currents add up and are equal to incoming currents at a junction.
C
bending or reorienting the wire does not change the validity of Kirchhoff's junction rule.
D
All of the above.
4
COMEDK 2020
MCQ (Single Correct Answer)
+1
-0

If $$P=Q=R=10\Omega$$ and $$S=20\Omega$$, then what resistance should be joined with S to balance the Wheatstone's network?

A
Join a resistance of 10$$\Omega$$ in series with S
B
Join a resistance of 10$$\Omega$$ in parallel with S
C
Join a resistance of 20$$\Omega$$ in parallel with S
D
Join a resistance of 20$$\Omega$$ in series with S
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