Easy
1 point
ID: #19340
Question
An electric heater is marked 2000W, 200V the resistance of the coil is -
Options
1
0.1
Correct Answer
2
20
Correct Answer
3
1/20
Correct Answer
4
200
Correct Answer
Explanation
Resistance R = V² / P. এখানে V = 200, P = 2000. R = (200 × 200) / 2000 = 40000 / 2000 = 20 Ohm. সুতরাং কয়েলের রোধ ২০ ওহম।