AC Fundamentals, Circuit and Circuit Theory Wire-wound resistors are unsuitable for use at high frequencies because they Are likely to melt under excessive eddy current heat Create more electrical noise Exhibit unwanted inductive and capacitive effects Consume more power Are likely to melt under excessive eddy current heat Create more electrical noise Exhibit unwanted inductive and capacitive effects Consume more power ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The effective resistance of an iron-cored choke working on ordinary supply frequency is more than its true resistance because of Skin effect Iron loss in core Increase in temperature Capacitive effect between adjacent coil turns Skin effect Iron loss in core Increase in temperature Capacitive effect between adjacent coil turns ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In the case of an unsymmetrical alternating current the average value must always be taken over Unsymmetrical part of the wave form The half cycle The whole cycle The quarter cycle Unsymmetrical part of the wave form The half cycle The whole cycle The quarter cycle ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will Be four times as high Be reduced to one fourth Be doubled Be reduced by half Be four times as high Be reduced to one fourth Be doubled Be reduced by half ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The main cause of silting up a channel, All of these Defective head regulator Inadequate slope Non-regime section All of these Defective head regulator Inadequate slope Non-regime section ANSWER DOWNLOAD EXAMIANS APP
AC Fundamentals, Circuit and Circuit Theory The period of a sine wave is ___________ seconds. Its frequency is 40 Hz 20 Hz 30 Hz 50 Hz 40 Hz 20 Hz 30 Hz 50 Hz ANSWER DOWNLOAD EXAMIANS APP
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