Question 3 - Past Year - 2 Mark Questions - Chapter 12 Class 10 - Electricity (Term 2)

Last updated at May 10, 2022 by Teachoo

The values of current (I) flowing through a given resistor of resistance (R), for the corresponding values of potential difference (V) across the resistor are as given below:

V(volts)

0.5

1.0

1.5

2.0

2.5

3.0

4.0

5.0

I(amepere)

0.1

0.2

0.3

0.4

0.5

0.6

0.8

1.0

Plot a graph between current (I) and potential difference (V) and determine the resistance (R) of the resistor.

Question 3 The values of current (I) flowing through a given resistor of resistance (R), for the corresponding values of potential difference (V) across the resistor are as given below:
Plot a graph between current (I) and potential difference (V) and determine the resistance (R) of the resistor. By Ohm’s law
V = I R
∴ R = 𝑉/𝐼 V (Volts)
I (Amperes)
To find resistance,
We find the mean of resistance in the 10 cases
∴ R = (0.2 + 0.2 + 0.2 + 0.2 + 0.2 +0.2 + 0.2 + 0.2 + 0.2 + 0.2)/10
R = 0.2 Ω

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CA Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 12 years and a teacher from the past 16 years. He teaches Science, Accounts and English at Teachoo