The efficiency of a motor is defined as the ratio of mechanical power output to that with input electric power. The motor is designed to operate at 100 V and it draws a current of 15 A . If output mechanical power of motor is 800 W, then calculate the efficiency of motor .

Explanation

To calculate the efficiency of the motor, we will follow these steps:

### Step 1: Identify the given values
- Voltage (V) = 100 V
- Current (I) = 15 A
- Output mechanical power (P_out) = 800 W

### Step 2: Calculate the input electric power (P_in)
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