Question 5 a) A transformer has 500 turns on the primary and 1500 turns on the...
Question 5 a) A transformer has 500 turns on the primary and 1500 turns on the secondary. If the output voltage is 36 V what is the input voltage? What type of transformer is this? (3 marks) b) 100 kW is delivered to a town along power lines that have a total resistance of 0.4 0. Calculate the power loss if the electricity is delivered at a voltage of (i) 240 V and (ii) 24kV. (5 marks) c) If the...
Question 5 a) A transformer has 500 turns on the primary and 1500 turns on the secondary. If the output voltage is 36 V what is the input voltage? What type of transformer is this? (3 marks) b) 100 kW is delivered to a town along power lines that have a total resistance of 0.4 0. Calculate the power loss if the electricity is delivered at a voltage of (i) 240 V and (ii) 24kV. (5 marks) c) If the...
Question 5 a) A transformer has 500 turns on the primary and 1500 turns on the secondary. If the output voltage is 36 V what is the input voltage? What type of transformer is this? (3 marks) b) 100 kW is delivered to a town along power lines that have a total resistance of 0.40. Calculate the power loss if the electricity is delivered at a voltage of (l) 240 V and (ii) 24kV. (5 marks) c) If the collector...
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Question 5 a) A transformer has 500 turns on the primary and 1500 turns on the secondary. If the output voltage is 36 V what is the input voltage? What type of transformer is this? (3 marks) b) 100 kW is delivered to a town along power lines that have a total resistance of 0.4 0. Calculate the power loss if the electricity is delivered at a voltage of () 240 V and (ii) 24kV....
please, answer all questions
Question 3 For Figure 1 use Kirchhoff's Laws to find the currents 11, 12 and 13, and find the total resistance of the circuit. Total 10 marks Space to answer Question 3 here RI R; 492 1 1, 192 + + 12 22 B 28 V R2 7V B2 Figure 1: Question 4 a) Two 8k resistors are connected as a potential divider with a supply p.d. of 20 mv. What is the current flowing and...
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Question 4 a) Two 8k resistors are connected as a potential divider with a supply p.d. of 20 mv. What is the current flowing and the p.d. across each resistor? (5 mark) b) The circuit shows four arrangements A, to D of three 2uF capacitors which arrangement has the smallest capacitance, the largest capacitance. (5 mark) Total 10 marks Space to answer Question 4 here А HAHE D HA Question 5 a) A transformer has 500...
A transformer has 1020 turns in the primary and 12 turns in the secondary. (a) Is this a step-up or step-down transformer? (b) If the primary is connected across 120 V rms, what is the open-circuit voltage across the secondary? ( ) V (c) If the primary current is 0.3 A, what is the secondary current, assuming negligible magnetization current and no power loss? ( ) A
A transformer is constructed with 533 turns in the primary coil and 10 turns in the secondary. If the rms voltage applied to the primary is 111 V, and the secondary is attached to a load with resistance 17 Ω, what is the rms current in the secondary? Express your answer in amps.
An ideal transformer with 5 turns on the primary and 10 turns on the secondary is shown in the figure. A sinusoidal voltage source having V(t) = 10 sin(100t) volts is connected across the primary and a 1 Ω resistor is connected across the secondary. What is the maximum value of the current in the primary circuit (not the secondary)? (answer is 40 amps)
A transformer has 500 turns in the primary and 50 turns in the secondary. If the input voltage is 120V, what is the output voltage? Answer: V If the transformer has an efficiency of 92%, what is the output current if the input current at 120V is 0.50A? Answer: А