A fan operates at 200 volt `(DC)` consuming `1000W` when running at full speed . It's internal wiring has resistance `1 Omega` . When the fan runs at full speed , its speed becomes constant. This is because the torque due to magnetic field inside tha fan is balanced by the torque due to air resistance on the blades of the fan and torque due to friction between the fixed part and the shaft of the fan. The electrical power going into the fan is spent `(i)` in the internal resistance as heat, call it `P_(1)(ii)` in doing work against internal friction and air resistance producing heat, sound etc. call it `P_(2)`. When the coil of fan rotates, an emf is also induced in the coil. This opposes the external emf applied to snd the current into the fan. This emf is called back-emf,call it `'e'`.
Answer the following questions when the fan is running at full speed.
The current flowing into the fan and the value of back emf e is

Options

A. 200 A,5 volt
B. 5A,200 volt
C. 5A,195 volt
D. 1 A,0 volt

Explanation

To find the current flowing into the fan and the value of back-emf (e) when the fan is running at full speed, we can follow these steps:

### Step 1: Calculate the Current (I)
We know the power (P) consumed by the fan and the voltage (V) across it. The relationship between power, voltage, and current is given by the formula:
\[ P = V \times I \]
Rearranging this formula to solve for current (I), we have:
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