A transformer is used to operate a model train. The transformer, which is plugged into a standard electrical outlet, produces an output voltage of 15.0 V (rms), applied to the train's tracks. (The voltage supplied to transformer from outlet is 120 V.)
(a) What is the ratio of the number of turns in the primary to the number of turns in the secondary?
(b) If the train uses an average power of 14.0 W, what are the rms currents in the secondary and in the primary? Assume an ideal transformer, with no energy loss.
Answers: 2
Another question on Physics
Physics, 22.06.2019 21:10
An athlete swings a ball, connected to the end of a chain, in a horizontal circle. the athlete is able to rotate the ball at the rate of 8.13 rev/s when the length of the chain is 0.600 m. when he increases the length to 0.900 m, he is able to rotate the ball only 6.04 rev/s. (a) which rate of rotation gives the greater speed for the ball? 6.04 rev/s 8.13 rev/s (b) what is the centripetal acceleration of the ball at 8.13 rev/s? m/s2 (c) what is the centripetal acceleration at 6.04 rev/s? m/s2
Answers: 2
Physics, 23.06.2019 00:20
Abeam of electrons moves at right angles to a magnetic field of 4.5 × 10-2 tesla. if the electrons have a velocity of 6.5 × 106 meters/second, what is the force acting on the electrons? the value of q = -1.6 × 10-19 coulombs.
Answers: 2
You know the right answer?
A transformer is used to operate a model train. The transformer, which is plugged into a standard el...
Questions
Chemistry, 15.01.2021 23:00
Mathematics, 15.01.2021 23:00
Mathematics, 15.01.2021 23:00
Mathematics, 15.01.2021 23:00
History, 15.01.2021 23:00
Mathematics, 15.01.2021 23:00
History, 15.01.2021 23:00
Mathematics, 15.01.2021 23:00
Mathematics, 15.01.2021 23:00
