Electronic Principles Which one of the following phrasers best describes flux density? None of these The rate of change of the number of lines of magnetic force The concentration of lines of magnetic force The force that maintains lines of force The opposition to a build-up of magnetic fields None of these The rate of change of the number of lines of magnetic force The concentration of lines of magnetic force The force that maintains lines of force The opposition to a build-up of magnetic fields ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles A loadstone is: a natural magnet None of these a paramagnetic alloy an artificial magnet a temporary magnet a natural magnet None of these a paramagnetic alloy an artificial magnet a temporary magnet ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles One henry of inductance is defined as: the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of counter emf required to reduce a current to 1 A the amount of inductance required to change the frequency of a current by 1 Hz the number of turns of wire in an inductor multiplied by the amount of current flowing through it None of these the amount of inductance required for generating 1 V of counter emf when the current changes at the rate of 1 A per second the amount of counter emf required to reduce a current to 1 A the amount of inductance required to change the frequency of a current by 1 Hz the number of turns of wire in an inductor multiplied by the amount of current flowing through it None of these ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Two diodes are in series. The first diode has a voltage of 0.75 V and the second has a voltage of 0.8 V. If the current through the first diode is 500 mA, what is the current through the second diode None of these 11 mA 10 mA 14 mA 12 mA None of these 11 mA 10 mA 14 mA 12 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the diameter of the coil in an inductor: None of these multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half reduces the value of inductance by one-fourth None of these multiplies the value of inductance by four multiplies the value of inductance by two reduces the value of inductance by one-half reduces the value of inductance by one-fourth ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The direction of conventional current flow is: from left to right from neutral to positive from negative to positive None of these from positive to negative from left to right from neutral to positive from negative to positive None of these from positive to negative ANSWER DOWNLOAD EXAMIANS APP
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