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Give definition of magnetic field and give its unit. |
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Answer» SOLUTION :1. Magnitude of force on electric charge in magnetic FIELD is given by, `F=Bqvsintheta` `thereforeB=F/(qvsintheta)` 2. The magnitude of magnetic field B is 1 SI unit, when the force acting on a unit charge (1C), moving perpendicular to B with a speed 1 m/s in one newton. 3. SI unit : Unit of B = `("Unit of F")/(qvsintheta)` = `(1N)/(1Cxx1ms^(-1)xx1)=(1N)/(1Cs^(-1)xx1m)` = `1NsC^(-1)m^(-1)` is also called Tesla = `1N/(AM)` = `1NA^(-1)m^(-1)` = 1 Tesla Gauss is the smaller unit of magnetic field. 1 gauss = `10^(-4)` Tesla Tesla is denoted by T. |
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