1
NEET 2019
MCQ (Single Correct Answer)
+4
-1
Which of the following acts as a circuit protection device?
2
NEET 2018
MCQ (Single Correct Answer)
+4
-1
A carbon resistor of (47 $$ \pm $$ 4.7) k$$\Omega $$ is to be marked
with rings of different colours for its identification.
The colour code sequence will be
3
NEET 2018
MCQ (Single Correct Answer)
+4
-1
A battery consists of a variable number n of
identical cells (having internal resistance r each)
which are connected in series. The terminals
of the battery are short-circuited and the current
I is measured. Which of the graphs shows the
correct relationship between I and n?
A
B
C
D
4
NEET 2018
MCQ (Single Correct Answer)
+4
-1
A set of n equal resistors, of value R each, are
connected in series to a battery of emf E and
internal resistance R. The current drawn is I. Now,
the n resistors are connected in parallel to the
same battery. Then the current drawn from battery
becomes 10I. The value of n is
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