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Electronics and Communication Digital Electronics Difficulty: Medium

A disc mounted on the shaft of a machine has 12 pattern points. The number of flashes projected on the disc by a stroboscope is 6000 in a minute. When the disc appears stationary and it has single image of 12 points, the speed of the machine will be The aquadag coating on the inside of PPI tube is used The purpose of connecting a Zener diode in a UJT circuit, used for triggering thyristors, is to What is the Q-point for a fixed-bias transistor with I B = 75 µA; β DC = 100, V CC = 20 V, R C = 1.5 kΩ The bending of bimetallic strips during rise in temperature is due to difference in their: