Determine The Force Required To Separate Two Magnetic Surfaces With A Contact Area Of 4π cm Square And The Magnetic Flux Density Across The Surface Is 1 weber per metre square

 

In A Brake Test The DC Motor Took 20A From A 200V Supply Mains The Brake Pulley Of Radius 10cm Had An Effective Load Of 20kg And The Speed Was 10rps The Value Of BHP(in metric is)

 

What Does The Area Under The Load Duration Curve Represent

 

What Will Be The Total Active Power Consumed By A 3 Phase Delta Connected System Which Is Supplied With A Line Voltage Of 230V When The Value Of Phase Current Is 15A And The Current Lags The Voltage By 30 Degree

 

Three Identical Impedences Are Connected In Delta The Load Is Supplied By A 3 Phase Supply Of 300V The Line Current Is 30√3A Calculate The Impedance Per Phase

 

In The Circuit Shown Here The 20V Source Has An Internal Resistance Of 1 Ohm While The Current Source Is Ideal The Value Of Current I Is

 

The Load Carried By v - v Connection Is