Ask a New Question

Question

An 8.0 Ω resistor is connected to 20 V.

a. Find I

b. Find how much energy is transformed in 12 minutes
3 years ago

Answers

R_scott
a. I = e / r = 20 v / 8 Ω = 2.5 A

b. power = E I = 20 V * 2.5 A = 50 W

a Watt is a Joule per second ... 50 J/s * 12 min * 60 s/min = 36 kJ
3 years ago

Related Questions

A 70 ohm resistor is connected to a 6.7 V battery in the circuit below.When the switch is closed, c... A 250-ohm resistor is connected in parallel with a 190-ohm resistor. What is their equivalent resist... A 350-ohm resistor is connected in series with a 270-ohm resistor. What is their equivalent resistan... A 2.0-ohm resistor is connected in series with a 20.0-V battery and a three-branch parallel network... A 50 ohm resistor is connected in series with a 0.2H A 50 ohm resistor is connected in series with a 0.2 H inductor, a 40 microFarad capacitor, and an AC... A resistor R is connected to a 12 V battery. The total current increases five times when a 400 Ohm r... if a resistor is connected in a circuit and the voltage is measured across it with a 6 volt battery,... A 12-ohm resistor is connected in parallel with a series combination of resistors of 8 and 16 ohms.... A 25 Ω resistor connected in series with a coil of 50 Ω resistance and 150 mH inductance. What is th...
Ask a New Question
Archives Contact Us Privacy Policy Terms of Use