One horse power is equal to :
(a) 1000W (b) 500W (c) 764W (d) 746W
A
1000 W
B
500 W
C
764 W
D
746 W
Text Solution
AI Generated Solution
The correct Answer is:
To solve the question "One horse power is equal to:", we need to know the conversion between horsepower and watts.
### Step-by-Step Solution:
1. **Understand the Units**:
- Horsepower (hp) is a unit of power that is commonly used to measure the power output of engines and motors.
- Watt (W) is the SI unit of power, defined as one joule per second.
2. **Know the Conversion Factor**:
- The standard conversion factor is that 1 horsepower is equivalent to 746 watts.
3. **Evaluate the Options**:
- Now, let's look at the options provided:
- (a) 1000W
- (b) 500W
- (c) 764W
- (d) 746W
4. **Select the Correct Answer**:
- Since we know that 1 horsepower = 746 watts, we can see that option (d) 746W is the correct answer.
5. **Final Answer**:
- Therefore, the answer to the question "One horse power is equal to:" is (d) 746W.
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A heater is designed to operate with a power of 1000W in a 100 V line. It is connected in combination with a resistance of 10 Omega and a resistance R , to a 100 V mains as shown in figure. What will be the value of R so that the heater operates with a power of 62.5W ?
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ICSE- WORK ENERGY AND POWER-EXERCISE-2(A) (MULTIPLE CHOICE TYPE )