Electric Circuits If the length of a wire of resistance R is uniformly stretched to n times its original value, what will be its new resistance n2R. R / n2. n2 / R. nR . n2R. R / n2. n2 / R. nR . ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Which of the following has no units? Permeability Moment of a magnet Permittivity Magnetic susceptibility Permeability Moment of a magnet Permittivity Magnetic susceptibility ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits The resistance of a strip of copper of rectangular cross section is 2 Ω. A metal of resistivity twice that of a copper is coated on its upper surface to a thickness equal to that of copper strip. The resistance of composite strip will be 4 / 3 Ω. 6 Ω. 3 / 4 Ω. 3 / 2 Ω. 4 / 3 Ω. 6 Ω. 3 / 4 Ω. 3 / 2 Ω. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Resistor stores the energy in the form of magnetic field. electrical field. both A and B. None of these magnetic field. electrical field. both A and B. None of these ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 6 V lead acid battery has an internal resistance of 0.01 Ω. How much current will flow when the battery is short circuited? 100 A. 600 A. 1 A. 6 A. 100 A. 600 A. 1 A. 6 A. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Atoms have no electric charge because they have an equal number of neutrons and protons. have an equal number of charged and non charged particles. have neutrons in their nuclei. have an equal number of electrons and protons. have an equal number of neutrons and protons. have an equal number of charged and non charged particles. have neutrons in their nuclei. have an equal number of electrons and protons. ANSWER DOWNLOAD EXAMIANS APP
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