Electronics Basics

26. What is the basic unit of inductance?

a) Ampere

b) Ohm

c) Volt

d) Henry

27. What is the formula for inductance?

a) L = N/I

b) L = I/N

c) L = N^2/I

d) L = I^2/N

28. What is the symbol for a transformer in a circuit diagram?

a) Straight line

b) Zigzag line

c) Circle

d) Arrow

29. Which component is used to transfer electrical energy between two or more circuits?

a) Inductor

b) Capacitor

c) Resistor

d) Transformer

30. What is the basic unit of power?

a) Ampere

b) Ohm

c) Volt

d) Watt