The question of electricity needs half an hour
The question of electricity needs half an hour Q3||| Some copper wire has a resistance of...
dc electric motor consumes 36 MJ when connected to a 250 V supply for 1 hour . Find the power rating of the motor * .and the current taken from the supply Q3/1/ Some copper wire has a resistance of 200 Ohm at 20.C.A current is passed through the wire and the temperature rises to 90°C. Determine the resistance of the wire at 90-C, assuming that the temperature coefficient of resistance * .is 0.004/-C at 0 C 251.85 Ohm O...
Q3/17 Some copper wire has a resistance of 200 Ohm at 20.C.A current is passed through the wire and the temperature rises to 90°C. Determine the resistance of the wire at 90°C, assuming that the temperature coefficient of resistance * .is 0.004/-C at 0 C 201.666 Ohm O 352.778 Ohm O 232.232 Ohm O 220 Ohm O 251.85 Ohm O 521.65 Ohm O Q5/// The maximum power dissipated in a 4 load is 100 w when connected to a d.c....
Q5/// The maximum power dissipated in a 40 load is 100 w when connected to a d.c. voltage V and internal resistance R. Calculate: the current in the load, internal resistance .R, and voltage V Q3/11 Some copper wire has a resistance of 200 Ohm at 20-C. A current is passed through the wire and the temperature rises to 90°C. Determine the resistance of the wire at 90°C, assuming that the temperature coefficient of resistance *.is 0.004/-C at 0°C
Q5/// The maximum power dissipated in a 40 load is 100 w when connected to a d.c. voltage V and internal resistance R. Calculate: the current in the load, internal resistance .R, and voltage V Q3/11 Some copper wire has a resistance of 200 Ohm at 20-C. A current is passed through the wire and the temperature rises to 90°C. Determine the resistance of the wire at 90°C, assuming that the temperature coefficient of resistance *.is 0.004/-C at 0°C
Q8/// What is the value of the current passing through the 2 Ohm resistor ?of the circuit below 6 V 222 492 102 12 V w 532 ЗА 2.455 A O 2.333 A leave question 1.333 A 1.122 A O 0.443 أخرى: Q6ll/ What is the value of the voltage * ?v in the circuit below 2A 692 522 492 V 12 V 312 12 12 19 V Current source Voltage source 20 v O 15.124 v 16.111 v O...
A copper wire has a resistance of 9.00 ohms at 33.0 degrees. Determine the resistance (in ohm) at 433 degrees celsius. The temperature coefficient of resistivity for copper wire is 3.90*10^-3 degrees celsius to the negative one power. (Assume that the temperarure coefficient of resistivity was measured using the reference temperature 20 degrees celsius.)
The question of electricity needs half an hour Q5/// The maximum power dissipated in a 4 load is 100 w when connected to a d.c. voltage V and internal resistance R. Calculate: the current in the load, internal * resistance R, and voltage V 4 A, 3 Ohm, 30 v O 3 A, 5 Ohm, 12 v O 2 A, 6 Ohm, 24 v O 6 A, 2.5 Ohm, 220 v O 5 A, 4 Ohm, 40 v O 10...
The question of electricity needs half an hour Q2/// Find Thevenin's equivalent across the 2 Ohm resistor for the *.circuit below 20 T lov 2V 42 22 -6v 8V 332 34
At 20°C, a length of copper wire has a resistance of 5.0Ω. What is its resistance when the wire is heated to 80°C? Let a = 0.004 at 20°C.
A copper wire has a resistance of 0.500 Ω at 20.0°C, and an iron wire has a resistance of 0.520 Ω at the same temperature. At what temperature are their resistances equal? The temperature coefficient of resistivity for copper is 3.90 *10^-3(°C)−1 and for iron it is 5.00 *10^-3(°C)−1.