The power rating of an electric motor which draws a current of $3.75\, amperes$ when operated at $200\, V$ is about
  • A$1\, H.P.$
  • B$500\, W$
  • C$54\, W$
  • D$750\, H.P.$
Easy
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    A wire when connected to $220\,V$ mains supply has power dissipation ${P_1}$. Now the wire is cut into two equal pieces which are connected in parallel to the same supply. Power dissipation in this case is ${P_2}$. Then ${P_2}:{P_1}$ is
    View Solution
  • 2
    The color code of a resistance is given below

    The values of resistance and tolerance, respectively, are :

    View Solution
  • 3
    Two resistors having equal resistances are joined in series and a current is passed through the combination. Neglect any variation in resistance as the temperature changes. In a given time interval
    View Solution
  • 4
    Sensitivity of potentiometer can be increased by
    View Solution
  • 5
    Three resistors each of $2\, ohm$ are connected together in a triangular shape. The resistance between any two vertices will be
    View Solution
  • 6
    In a potentiometer experiment two cells of $e.m.f.$ $E_1$ and $E_2$ are used in series and in conjunction and the balancing length is found to be $58\, cm$ of the wire. If the polarity of $E_2$ is reversed, then the balancing length becomes $29\, cm$. The ratio $\frac{{{E_1}}}{{{E_2}}}$ of the $e.m.f.$ of the two cells is
    View Solution
  • 7
    Emf is most closely related to
    View Solution
  • 8
    An electrical bulb rated $220\,V , 100\,W$, is connected in series with another bulb rated $220\,V$, $60\,W$.If the voltage across combination is $220\,V$, the power consumed by the $100\,W$ bulb will be about $........... W$
    View Solution
  • 9
    A capacitor of capacitance $5\,\mu F$ is connected to a source of constant $emf$ of $200\,V$ for a long time, then the switch was shifted to contact $2$ from contact $1$ . The total amount of heat generated in the $500\,\Omega $ resistance, thereafter is
    View Solution
  • 10
    Resistance as shown in figure is negative at
    View Solution