An American traveler in New Zealand carries a transformer to convert New Zealand's standard 230 V to 115 V so that she can use some small appliances on her trip. a) What is the ratio of turns in the primary and secondary coils of her transformer? b) What is the ratio of input to output current?

When the resistance of the variable resistor in the lefthand coil is increased at a constant rate, what is the direction of the current in resistor R of the right-hand coil, from a to b or from b to a? Briefly explain.

A transformer is used to supply a 14.5 V model train with power from a 132V wall plug. The train operates at 64 W of power. (a) What is the current in the secondary coil of the transformer in ampere? (b) What is the current in the primary coil in ampere? (c) What is the ratio of the number of primary to secondary turns? (d) What type of transformer is this transformer

Can you help with 5a and subquestion 5b 5a. An American traveler in Australia carries a transformer to convert Australia’s standard 230 V to 115 V so that she can use some small appliances on her trip. What is the ratio of turns in the primary and secondary coils of her transformer? 5b. What is the ratio of input to output current? (How could a Australian traveling in the United States use this same transformer to power her 230 V appliances from 115 V?) This is not and will not be graded

What losses occur due to heat loss during the circulation of currents around the copper windings? It is the greatest loss in the operation of an electric transformer. please don't use Al answer

A transformer has a primary voltage of Vp= 400 V and primary current of Ip=1.5 A. If the measured values of secondary voltage and secondary current are Vs= 195 V and Is= 2.9A, respectively a) calculate the efficiency of this transformer. b) write the type of the transformer(step-up or step-down) with its reason.

A 6.00-V battery is connected across the primary coil of a transformer having 50 turns. If the secondary coil of the transformer has 100 turns, what voltage appears across the secondary?

You have a transformer with a primary current of 34A and a primary voltage of 1960V. The current in the secondary coil is 143A. What is the voltage of the secondary coil?  What is the ratio of loops in the secondary coil to loops in the primary coil?