Nichrome wire is an alloy of_____________?
Nichrome wire is an alloy of_____________?
A. lead and zinc
B. chromium and vanadium
C. nickel and chromium
D. copper and silver
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The ratio of mass of proton to that of electron is nearly_____________?
The ratio of mass of proton to that of electron is nearly_____________?
A. 1840
B. 1840
C. 30
D. 4The minimum charge on an ion is______________?
The minimum charge on an ion is______________?
A. equal to the atomic number of the atom
B. equal to the charge of an electron
C. equal to the charge of the number of electrons in an atom (#) zeroA rheostat differs from potentiometer in the respect that it_____________?
A rheostat differs from potentiometer in the respect that it_____________?
A. has lower wattage rating
B. has higher wattage rating
C. has large number of turns
D. offers large number of tapgPower dissipation in ideal inductor is
Power dissipation in ideal inductor is
A. Maximum
B. Minimum
C. Zero
D. A finite valueInternal resistance of ideal inductor is zero. As there is no resistance, there should not be any dissipation of power. Pure inductor has no resistive component, so it active power dissipation is zero.
Conductance : mho :: ____________?
Conductance : mho :: ____________?
A. resistance : ohm
B. capacitance : henry
C. inductance : farad
D. lumen : steradianIf/, R and t are the current, resistance and time respectively, then according to Joule’s law heat produced will be proportional to_______________?
If/, R and t are the current, resistance and time respectively, then according to Joule’s law heat produced will be proportional to_______________?
A. I2Rt
B. I2Rf
C. I2R2t
D. I2R2t*