Physics
Find the potential difference required to flow a current of 300 mA in a wire of resistance 20 Ω.
Related Questions
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In an experiment of verification of Ohm's law, following observations are obtained.
Potential difference V (in volt) 0.5 1.0 1.5 2.0 2.5 Current I (in amp) 0.2 0.4 0.6 0.8 1.0 Draw a V-I graph and use this graph to find —
(a) the potential difference V when the current I is 0.5 A.
(b) the current I when the potential difference V is 0.75 V.
(c) the resistance in circuit.