Which is true? An ideal emf device has internal resistance and a real emf device does not. A real emf device sets up a potential difference and an ideal emf device does not. An ideal emf device sets up a potential difference and a real emf device does not. A real emf device has internal resistance and an ideal emf device does not.
Answers: 1
Physics, 22.06.2019 16:20, jmackenzie7
How does a circuit breaker protect a refrigerator? a. when the current is too high, a metal strip in the fuse melts and opens the circuit. b. when the resistance is too high , a re-settable which opens a circuit c. when the current is too high , a re-settable switch opens the circuit d. when the resistance is too high a metal strip in the fuse melts and opens the circuit
Answers: 2
Physics, 22.06.2019 22:50, bigbrogamer
Which of the following statements correctly describes a transformer?
Answers: 3
Physics, 23.06.2019 14:00, joseandpauline
Multiply 5.036×102m by 0.078×10−1, taking into account significant figures.
Answers: 1
Which is true? An ideal emf device has internal resistance and a real emf device does not. A real em...
Mathematics, 30.07.2021 02:40