Electronics. Test 7
Electronics. Test 7
These circuits are all active filters. Which of the circuits is a band-pass filter?
These circuits are all active filters. Which of the circuits is a high-pass filter?
The circuit symbol is a driver for a solenoid (coil) of a solenoid valve S. What is the purpose of the diode IN 4002 connected in parallel to the solenoid S?
The figure shows a silicon controlled rectifier with a RC circuit connected in parallel. RC circuit is often used in such connection. For which purpose?
The circuit symbol is a full-wave bridge rectifier. Which electronic component will you connect between 'a' and 'b' in order to obtain reduced ripple voltage to the load RL.
This is a typical emitter follower. What is the main benefit obtained by use of an emitter follower?
Ordinary thyristors (SCR) must often be protected against reverse overvoltage transients because even over-voltages of extremely short duration can destroy them. These circuits have been given such over-voltage protection, but only one of them is correct. Which?
This amplifier circuit is a very common configuration used to amplify the difference in voltage between two input signals; in this case input 1 and 2. What is this amplifier called?
The circuit symbol is a widely used system for rectification of AC into DC. Which of the diagrams is the correct for the out- put voltage when the input voltage is sine-shaped as shown?
The figures show a graphical symbol for a particular electronic component and a typical working characteristic for the same. Which component?
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