The rotation of the electric motor in one direction is because the commutator frequently reverses the direction of the current in the loop of wire.
<h3>What is an electromagnet?</h3>
An electromagnet is a device which works on the principle of electromagnetism.
Electromagnetism is the force produced due to an interaction of the electric and magnetic fields.
An example of an electromagnet is the electric motor.
In an electromagnet, the rotation of the motor in one direction is because the commutator frequently reverses the direction of the current in the loop of wire.
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The deceleration of the car is 3 m/s².
<u>Explanation:</u>
So the initial velocity of the car is given as 12 m/s. As the car is said to slow down and then it stops after 4 seconds, so the final velocity is zero.
We know that the acceleration acting on any object to stop the motion of that object is termed as deceleration or negative acceleration.
This is because, acceleration is the ratio of change in velocity to time taken for that change in velocity.
So.,
So the deceleration of the car is 3 m/s².
Answer:
0072.00kW
Explanation:
1,200 hours multiply by 60W will give you 72000kW. Convert it to kW. That will give you 0072.00kW.
Answer:
Explanation:
Given,
Number of turns, N = 645 N
Area, A = 20.25 m²
Earth Magnetic field, B = 5 x 10⁻⁵ T
Maximum Emf = 1.25 V.
Angular velocity, ω = ?
Using Induced Emf formula
Angular velocity of the coil =