Analog Electronics Negative feedback in an amplifier Reduces gain Increases noise Reduces bandwidth Increase frequency &phase distortion Reduces gain Increases noise Reduces bandwidth Increase frequency &phase distortion ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics When the source voltage increases in a zener regulator, which of these electric current remain approximately constant ? Series current. Zener current. None of these. Load current. Series current. Zener current. None of these. Load current. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The voltage divider biasing circuit is used in amplifiers quite often because it makes the operating point almost independent of β. reduces the cost of the circuit. limits the AC signal going to base. reduces the DC base electric current. makes the operating point almost independent of β. reduces the cost of the circuit. limits the AC signal going to base. reduces the DC base electric current. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics The major advantage of a photo transistor as compared to a photo diode is its increased sensitivity. response to higher frequencies. AC operation. durability. increased sensitivity. response to higher frequencies. AC operation. durability. ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics A 741-type OP-amp has a gain-bandwidth product of 1MHz.A non-inverting amplifier using this opamp & having a voltage gain of 20db will exhibit -3db bandwidth of 1000/7.07 KHz 1000/17 KHz 50 KHz 100 KHz 1000/7.07 KHz 1000/17 KHz 50 KHz 100 KHz ANSWER DOWNLOAD EXAMIANS APP
Analog Electronics Which are the ways to convert an alternating current into a direct current ? All the above. Center-Taped Full-wave rectification. Bridge Full-wave rectification. Half-wave rectification. All the above. Center-Taped Full-wave rectification. Bridge Full-wave rectification. Half-wave rectification. ANSWER DOWNLOAD EXAMIANS APP
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