The question of electricity needs half an hour
The question of electricity needs half an hour Q1/11 A dc electric motor consumes 36 MJ...
Q1// A 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 10 kw, 40 A O 12 kw, 15 A O 40 kw, 10 A O 15 kw, 30 A O 20 kw, 13 A None of the above It needs a solution in 10 minutes
answer Q1/A 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 15 kw, 30 A O 40 kw, 10 A O 20 kw, 13 A O 12 kw, 15 A O 10 kw, 40 A O None of the above
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...
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...
Void of electricity, needing the solution in half an hour Q1: Fill the blanks for the followings: 1- The strength of electric current is the rate of 2- An electric potential is the capacity of charge to 3. An electric circuit is a ...... through which current can flow. 4- The resistance of a material is to the length. 5- The conductivity is the ......... of the resistivity and is measured in
Terry owns an electric vehicle that uses a 273 V DC electric motor. When Terry drives his vehicle on a 3.4 hour trip, the power used by the motor is a constant 16.7 kW. If the power company charges Terry $0.12 per kWh, what is his total electric energy cost for the trip? During the trip, what is the current used by the engine?
Q1b) DC Machines [ 6 marks ] You are given a 24 V DC motor. When you connect it to a 24 V supply, under no-load conditions it spins at 2,000 rpm. With the same 24 V supply, when the motor is stalled, the input current is 50 A. i) Calculate the back-emf constant and hence the stall torque of the motor. Find also the armature resistance. [3 marks ] ii) The DC motor has a rated input current of...
Test 2 Question 1 (30 points) Q1 (15 + 5 + 5 +5 = 30marks) A 220 V, 9 kW shunt-connected dc motor, has the field resistance of 2200 and the armature resistance of 0.2812. The motor draws a current of 2,5 A at no-load and is rotating at 1600 rpm. When the motor is delivering its rated power, calculate: (a) The current taken by the motor. (b) The motor speed. (c) The efficiency, and (d) The speed regulation
A DC Motor 24 of 25 > Part A A shunt-wound DC motor with the field coils and rotor connected in parallel (see the figure) (Figure 1)operates from a 135 V DC power line. The resistance of the field windings, Rf, is 203 2. The resistance of the rotor, R is 5.60 ? , when the motor is running, the rotor develops an emf E. The motor draws a current of 4.90 A from the line. Friction losses amount to...
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