When 5V potential difference is applied across a wire of length 0.1m, the drift speed of electrons is 2.5×104 ms¯¹. If the electron density in the wire is 8×10^28m³, the resistivity of the material is close to [2015]

Question:

Options :

a)1.6 x 10^-8Ωm
b)1.6 x 10^-7Ωm
c)1.6 x 10^-6Ωm
d)1.6 x 10^-5Ωm

Answer :

d)1.6 x 10^-5Ωm

Answer Steps :

Step:-1

Step:-2

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

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