Determine the power rating of the heater
An electric heater is made by applying a potential difference of 110 V across a wire having a resistance of 5.0Ω. Determine the power rating of the heater in kW?
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A spool of thread consists of an average radius of 1.00cm. When the spool comprises 62.8 m of thread, determine the number of turns of thread on the spool?
The magnitude of torque on a square loop of area A having current I in a constant magnetic field of magnitude B if the magnetic field is parallel to the plane of the loop is?
Five flood-lights of 250 watt operate at night for 8 hours. When the cost of electricity if $0.08 per kWh, determine the cost of running the flood-lights for 14 nights?
The electron of charge q = -1.60 x 10^-19C is moving with a speed of 3.00 x 10^3 m/s perpendicular to the steady magnetic field of strength 0.200 T. When it is moving in a circle and travels 400 m, determine how much work in J was completed by the
The rotational inertia of the collapsing spinning star changes to 1/4 its initial value. Determine the ratio of the new rotational kinetic energy to the initial rotational kinetic energy?
Pinky consists of a mass of 3.54 kg sits on a pump handle at a distance of 35.57 cm from the axis of rotation. By using this information, determine the torque of Pinky when the handle is 66.8° from the horizontal?
Determine how will the angular acceleration of a disk raise if we were to raise the radius by a factor of 7.48?
A inductor of 5H is subjected to the electric current which changes at a rate of 4.5 amps per second. Determine how much of a voltage drop will there be across the inductor?
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