Electronic Principles A loadstone is: a paramagnetic alloy a natural magnet None of these a temporary magnet an artificial magnet a paramagnetic alloy a natural magnet None of these a temporary magnet an artificial magnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles What form of energy is used to maintain an imbalance of charges between the terminals of a battery? Mechanical energy None of these Solar energy Electronical energy Chemical energy Mechanical energy None of these Solar energy Electronical energy Chemical energy ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff? 100 Ohm 6 Ohm None of these 5 Ohm 50 Ohm or more 100 Ohm 6 Ohm None of these 5 Ohm 50 Ohm or more ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A zener regulator has an input voltage from 15 to 20 V and a load current from 5 to 20 mA. If the zener voltage is 6.8 V, what value should the series resistor have? 410 Ohm 400 Ohm 550 Ohm None of these 310 Ohm 410 Ohm 400 Ohm 550 Ohm None of these 310 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Which one of the following phrases best describes residual magnetism? None of these The force of attraction between the poles of a permanent and temporary magnetic field The circular magnetic field that surrounds a conductor carrying a current Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The amount of magnetic flux that is not confined to the core material of an electromagnet None of these The force of attraction between the poles of a permanent and temporary magnetic field The circular magnetic field that surrounds a conductor carrying a current Magnetism that remains in the core of an electromagnet after the current through the coil is turned off The amount of magnetic flux that is not confined to the core material of an electromagnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A real voltage source has A large internal resistance None of these Zero internal resistance A small internal resistance Infinite internal resistance A large internal resistance None of these Zero internal resistance A small internal resistance Infinite internal resistance ANSWER DOWNLOAD EXAMIANS APP
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