Electronic Principles What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz? 1590 Ohm less than 1 Ohm 312 Ohm None of these 690 Ohm 1590 Ohm less than 1 Ohm 312 Ohm None of these 690 Ohm ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles At room temperature a conductor has low many holes? less than the free electrons Only those produced by thermal energy many None of these Same number as free electrons less than the free electrons Only those produced by thermal energy many None of these Same number as free electrons ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current? 175 mA 17.5 mA None of these 1750 mA 1.75 mA 175 mA 17.5 mA None of these 1750 mA 1.75 mA ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Positive ions are atoms that have Gained an electron None of these Lost a proton Lost an electron Gained a proton Gained an electron None of these Lost a proton Lost an electron Gained a proton ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Suppose a step-down transformer has a turns ration of 5:1. If the secondary current is 1A rms, what is the primary-current? 0.6 A None of these 0.2 A 0.4 A 0.3 A 0.6 A None of these 0.2 A 0.4 A 0.3 A ANSWER DOWNLOAD EXAMIANS APP
Electronic Principles Doubling the operating voltage of a purely capacitive circuit: cuts the capacitive reactance in half None of these doubles the amount of capacitive reactance multiplies the capacitive reactance by 7 has no effect on the capacitive reactance cuts the capacitive reactance in half None of these doubles the amount of capacitive reactance multiplies the capacitive reactance by 7 has no effect on the capacitive reactance ANSWER DOWNLOAD EXAMIANS APP
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