Electric Circuits Which of the following has least resistivity? Copper. Aluminium. Lead. Mercury. Copper. Aluminium. Lead. Mercury. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits When the internal resistance of a cell is large compared to the external resistance in the circuit then high current can flow through the external resistance by grouping the cells in parallel. as in series. mixed. in either series or parallel. in parallel. as in series. mixed. in either series or parallel. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A 100 ohm resistor is directly connected across a 80 V battery. What is the power dissipation? 10 W. 5 W. 64 W. 1 W. 10 W. 5 W. 64 W. 1 W. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A external resistance R is connected to a cell of internal resistance r, then the current is maximum when R = r. R > r. R < r. None of these R = r. R > r. R < r. None of these ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits Atoms have no electric charge because they 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. have an equal number of neutrons and protons. have an equal number of charged and non charged particles. ANSWER DOWNLOAD EXAMIANS APP
Electric Circuits A p.d. of 300 V is applied across series combination of 3 μF and 9 μF capacitors. The charge on each capacitor is ___________________ μC. 240. 675. 3600. 7.5. 240. 675. 3600. 7.5. ANSWER DOWNLOAD EXAMIANS APP
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