Tag: electric current, potential difference and resistance
Questions Related to electric current, potential difference and resistance
In electrolysis, mass of the substance liberated at cathode is proportional to
Q(charge)= ?
The ratio of the drifty velocity $v _d$ and r.m.s. velocity of electrons is
When no current is passed through a conductor
In metals, the time of relaxation of electrons
A wire whose cross - sectional area is increasing linearly from its cone end to the other, is connected across a battery of V volts. Which of the following quantities remain constant in the wire ?
A current of $5A$ passes through a copper conductor $(resistivity=1.7\times10^{-8}\Omega m$) of radius of cross-section $5mm$. Find the mobility of the charges if their drift velocity is $1.1\times 10^{-3}m/s$
Charge carriers, each of charge q, move along a wire of fixed length. The number density of the
charge carriers in the wire is n.
What is also required, for this wire, to determine the average drift velocity of the charge carriers in
terms of n and q?
The electric current in a wire may be calculated using the equation $I=Anvq$.
Which statement is not correct?