Answer the question in one sentence each (Alternatives are to be noted): After what time will the direction of current in an electric supply line of frequency 50 Hz be reversed? Or, Which physical quantity has unit Wbcdot m^(-2)? Is it scalar or vector?

Answer the question in one sentence each (Alternatives are to be note

1.	Answer the question in one sentence each (Alternatives are to be noted): After what time will the direction of current in an electric supply line of frequency 50 Hz be reversed? Or, Which physical quantity has unit Wbcdot m^(-2)? Is it scalar or vector?
Answer» SOLUTION :TIME =`(T)/(2) = (1)/(2)((1)/(50)) = 0.01` s Or, Magneitc field, it is a VECTOR quantity

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Answer the question in one sentence each (Alternatives are to be noted): After what time will the direction of current in an electric supply line of frequency 50 Hz be reversed? Or, Which physical quantity has unit Wbcdot m^(-2)? Is it scalar or vector?

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