# GENERAL KNOWLEDGE

## GK

### UNITS DEVICES DIMENSIONS AND MEASUREMENTS

 Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is unit of Magnetic Induction?
 A ohm B volt C farad D henry
Explanation:

Detailed explanation-1: -The henry per meter (symbolized H/m) is the unit of magnetic permeability in the International System of Units ( SI ). Reduced to base units in SI, 1 H/m is the equivalent of one kilogram meter per second squared per ampere squared (kg times m times s-2 times A-2 ).

Detailed explanation-2: -The magnetic flux density or magnetic induction is the number of lines of force passing through a unit area of material, B. The unit of magnetic induction is the tesla (T).

Detailed explanation-3: -Farad (F): The SI unit for Capacitance (C). One Farad equals a capacitor that has a Coulomb (1 C) of charge on it with a voltage separation of a Volt (1 V). Henry (H): The SI unit for inductance. Hertz (Hz): The SI unit for frequency.

Detailed explanation-4: -Henry is a derived unit based on four fundamental units, i.e., kilogram (kg), meter (m), second (s) and ampere (A). When reduced to base SI units, 1 Henry will result into one-kilogram meter squared per second per ampere squared (kgm2s−2A−2).

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