A heating element is marked 210 V, 630 W. What is the value of the current drawn by the element when connected to a 210 V dc source ?
Text Solution
Verified by Experts
Here, `V = 210 V, P = 630 W`, Current `I = P/A = 630/210 = 3A`
Topper's Solved these Questions
CURRENT ELECTRICITY
PRADEEP|Exercise Conceptual Problems|3 Videos
CURRENT ELECTRICITY
PRADEEP|Exercise Very short Q/A|7 Videos
COMMUNICATION SYSTEMS
PRADEEP|Exercise MODEL TEST PAPER-2|9 Videos
DUAL NATURE OF RADIATION AND MATTER
PRADEEP|Exercise Exercise|191 Videos
Similar Questions
Explore conceptually related problems
A heating element is marked 210 V, 630 W. What is the current drawn by the element when connected to a 210 V dc mains ? What is the resistance of an element ?
A heating element is marked 210V, 630W. What is the current drawn by the element when connected to a 210V d.e. mains? What is the resistance of the element?
A bulb is marked 220V, 100W. What will be the current in the filament when connected to 200V?
What will be the current drawn by an electric bulb of 40W when it is connected to a source of 220V?
Two heaters are marked 200V, 300W and 200 V, 600 W. If the heaters are combined in series and the combination connected to a 200 V dc supply, which heater will produce more heat ?
Two heatere are marked 200V, 300W and 200V, 600W. If the heaters are combined in series and the combination connected to a 200V d.c. supply. Which heater will produce more heat?
The current I drawn from the 5 V source will be
The current I drawn from the 5V source will be
A heating element has a resistance of 100 Omega at room temperature. When it is connected to a supply of 220 V, a steady current of 2A passes in it and temperature is 500^(@)C more than room temperature. What is the temperature coefficient of resistance of the heating element ?
PRADEEP-CURRENT ELECTRICITY-Problems for Practice (B)