400 J of heat is produced each second in a resistance. Find the current passing through it.
Question
400 J of heat is produced each second in a resistance. Find the current passing through it.
Solution
To solve this problem, we need to use the formula for power, which is P = IV, where P is power, I is current, and V is voltage. However, we don't have the voltage in this problem.
But we know that power can also be calculated by the formula P = I^2R, where R is resistance.
Given that the power P is 400 J/s (or Watts), we can rearrange the formula to solve for I (current):
I = sqrt(P/R)
Without the value of the resistance R, we cannot calculate the current I.
So, we need more information to solve this problem.
Similar Questions
In an electrical circuit, two resistors of 2 Ω and 4 Ω are connected in series to a 6 V battery, find the heatdissipated by the 4 Ω resistor in 5 s
A current of 2 A is passed through a coil of resistance 75 ohm for 2 minutes. (a) How much heat energy is produced ? (b) How much charge is passed through the resistance?
Calculate the temperature (in K) at which the resistance of a metal becomes20% more than its resistance at 300 K. The value of the temperature coefficientof resistance for this metal is 2.0 × 10-4 /K
A 5 resistor is connected across a battery of 6 volts.Calculate the energy that dissipates as heat in 10 s
The power of the heater is 750 W750 W at 1000∘ C1000° C. What will be its power at 200∘ C200° C if thermal coefficient of resistance is α=4×10−4 °C−1𝛼=4×10-4 °C-1?
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.