1
CBSE 12th Physics (Term 1) Paper 2021-22
+0.77
-0
The equivalent resistance between A and B of the network shown in figure is

A
3R $$\Omega$$
B
$$\left( {{3 \over 2}} \right)$$R $$\Omega$$
C
2R $$\Omega$$
D
$$\left( {{2 \over 3}} \right)$$R $$\Omega$$
2
CBSE 12th Physics (Term 1) Paper 2021-22
+0.77
-0
Assertion (A) : Higher the range, lower is the resistance of an ammeter.

Reason (R) : To increase the range of an ammeter additional shunt is added in series to it.
A
Both (A) & (R) are true and (R) is correct explanation of (A).
B
Both (A) & (R) are true and (R) is not correct explanation of (A).
C
(A) is true but (R) is false.
D
(A) is false and (R) is also false.
3
CBSE 12th Physics (Term 1) Paper 2021-22
+0.77
-0
Case Study :

An experiment was set up with the circuit diagram shown in figure. Given that R1 = 10 $$\Omega$$, R2 = R3 = 5 $$\Omega$$, r = 0 $$\Omega$$ and E = 5 V

The points with the same potential are -
A
b, c, d
B
f, h, j
C
d, e, f
D
a, b, j
4
CBSE 12th Physics (Term 1) Paper 2021-22
+0.77
-0
Case Study :

An experiment was set up with the circuit diagram shown in figure. Given that R1 = 10 $$\Omega$$, R2 = R3 = 5 $$\Omega$$, r = 0 $$\Omega$$ and E = 5 V

The current through branch bg is -
A
1 A
B
$${1 \over 3}$$ A
C
$${1 \over 2}$$ A
D
$${2 \over 3}$$ A
Class 12 Subjects
Chemistry
Physical Chemistry
Inorganic Chemistry
Organic Chemistry
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