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[1 Mark Questions]

Question 1011 Mark
What is the current in a circuit if the charge passing each point is 20C in 40s?
Answer
Given, Q = 20C, t = 1s
I = ?
We know that:
$\text{I}=\frac{\text{Q}}{\text{T}}$
Thus $\text{I}=\frac{20}{40}=0.5\text{A}.$
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Question 1021 Mark
Name the material which is used for making the filaments of an electric bulb.
Answer
Tungsten is used for making the filaments of an electric bulb.
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[1 Mark Questions] - Page 3 - Science STD 10 Questions - Vidyadip