Plot a graph between V and I and calculate the resistance of that resistor.
8. When a 12 V battery is connected across an unknown resistor, there is a current
of 2.5 mA in the circuit. Find the value of the resistance of the resistor. V-
9. A battery of 9 V is connected in series with resistors of 0.2 0,0.3, 0.4 2.0.5
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8.
Answer:
The resistance is 4800Ω or 4.8kΩ.
Explanation:
It is given that,
V=12V , I= 2.5 mA= 2.5×10^-3 A , R =?
We know,
V=IR
therefore , R = V/I
R = 12/2.5×10^-3
R = 12×10^3/2.5
R=12000/2.5
R=120000/25
R=4800Ω .
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