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- A transformer has 1000 turns in the primary coil and 100 turns in the secondary coil. If the primary coil is connected to a 120 V outlet and draws 0.050 A, what are the voltage and current of the secondary coil?A. 1200 V, 0.0050 AB. 1200 V, 0.50 AC. 12 V, 0.0050 AD. 12 V, 0.50 Awhich of the following statements is not true for a step-up transformer? a. the secondary current is less than the primary current b. the secondary voltage is greater than the primary voltage c. there are more turns in the primary coil than in the secondary coil d. for a 100-percent effecient transformer, the power in the primary coil is equal to the power in the secondary coilA transformer has 450 turns in the primary coil, which provides 1270 V at 8.9 A. If the secondary coil operates at 590 V, what is the current in the secondary coil?
- The resistances of the primary and secondary coils of a transformer are 56 and 14 V, respectively. Both coils are made from lengths of the same copper wire. The circular turns of each coil have the same diameter. Find the turns ratio Ns/Np.A transformer has 18 turns of wire in its primary coil and 90 turns in its secondary coil. An alternating voltage with an effective value of 110 V is applied to the primary coil. At the secondary coil, an alternating voltage with an effective value of 550 V is obtained. A current of 10 A is supplied to the primary coil of the transformer. Calculate the maximum effective current in the secondary coil. The maximum effective current in the secondary coil is _____ AIn a step-up transformer, the voltage in the secondary coil is ________ than the voltage in the primary coil, and the current in the secondary coil is __________ than the current in the primary coil. answer choices: larger and smaller
- A transformer has 100 turns in its primary coil and 2000 turns in its secondary coil. The emf in the primary is 12 V and the total resistance in the secondary is 1000 ohm calculate (i) the emf in the secondary coil. (ii) the current in the secondary coil, (iii) the current in the primary coil. Assume that the transformer is ideal.A 2 kV/250 V transformer has 50 turns on the secondary winding, then the number of turns on the primary winding is, 6.25 2000 250 400d) The secondary coil of a step-up transformer provides the voltage that operates an electrostatic air filter. The ratio of the transformer turns is 20:1. The primary coil is plugged into a standard 240-V outlet. The current in the secondary coil is 1.5 mA. Find the current in the primary coil
- In a transformer, a primary winding has 220V and 1A. If the second winding has 460V, what is the output current?Group of answer choices 2 A 0.1 A 0.5 A 0.9 AA transformer consisting of two coils wrapped around an iron core is connected to a generator and a resistor, as shown in the drawing. There are 13 turns in the primary coil and 18 turns in the secondary coil. The peak voltage in the resistor is 70 V. What is the peak emf of the generator?A transformer has 20 turns of wire in its primary coil and 50 turns of wire in its secondary coil. If the peak current in the primary coil is 8.0 A, what is the peak current in the secondary coil? a. 4.6 A b. 8.7 A c. 20 A d. 12 A e. 3.2 A
