How can a small current in a circuit be detected?
Hence a galvanometer detects a small current in a circuit.
The device which can be used to detect very small current flowing in an electric circuit is : (a) LEAD (b) dB (c) MCB (d) LED
Which effect of current can be utilized in detecting a current carrying wire concealed in a wall?
Explain how flaws (or defects) in a metal block can be detected by using ultrasound.
Small current in a circuit is detected by