Question

When the sun is low in the sky, allow a single ray of sunlight to enter a darkened room through a window. record our observations. this give you an indication of the random movement of molecules in a gas.

Answer 1

Explanation:

In the circuit diagram given below, find:

(A) total resistance of the circuit,

(B) total current flowing in the circuit, and

(C) the potential difference across R

1

question

December 27, 2019

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Jain Mulmuley

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ANSWER

When 8 and 12 are in parallel

and 7.2 is in series with them

Net Resistance

10

7.2

+

12+8

8×12

=

10

72

+

20

96

=

10

72

+

10

48

=

10

120

=12Ω

Total current =

netR

V

=

12

6

=0.5Ω

Voltage across R

1

=iR

1

=0.5×7.2

=3.6