1
KCET 2019
MCQ (Single Correct Answer)
+1
-0

The variation of terminal potential difference $$V$$ with current flowing through a cell is as shown. The emf and internal resistance of the cell are

KCET 2019 Physics - Current Electricity Question 29 English

A
$$3 \mathrm{~V}, 3 \Omega$$
B
$$3 \mathrm{~V}, 0.5 \Omega$$
C
$$6 \mathrm{~V}, 2 \Omega$$
D
$$6 \mathrm{~V}, 0.5 \Omega$$
2
KCET 2019
MCQ (Single Correct Answer)
+1
-0

In a potentiometer experiment, the balancing point with a cell is at a length $$240 \mathrm{~cm}$$. On shunting the cell with a resistance of $$2 \Omega$$, the balancing length becomes $$120 \mathrm{~cm}$$. The internal resistance of the cell is

A
$$4 \Omega$$
B
$$2 \Omega$$
C
$$1 \Omega$$
D
$$0.5 \Omega$$
3
KCET 2018
MCQ (Single Correct Answer)
+1
-0
The resistance $R=\frac{V}{I}$, where $V=(100 \pm 5) \mathrm{V}$ and $I=(10 \pm 0.2) \mathrm{A}$. The percentage error in $R$ is
A
$5.2 \%$
B
$4.8 \%$
C
$7 \%$
D
$3 \%$
4
KCET 2018
MCQ (Single Correct Answer)
+1
-0
Ohm's law is applicable to
A
diode
B
transistor
C
electrolyte
D
conductor
KCET Subjects
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