A series-wound motor is connected to a d.c. supply and develops full-load torque when the current is 30 A and speed is 1000 rev/min. If the flux per pole is proportional to the current flowing, find the current and speed at half full-load torque, when connected to the same supply.

USE FLUIDSIM LADDER DIAGRAM Simulate a two-way traffic light given the following conditions; Greenlight- 3 seconds Yellow light – 2 seconds Red light – 5 seconds Display output:

Which of the following is not an approved grounding method?A)Metallic underground water pipingB)Ground rodsC)Gas pipingD)Metal frame of a building

Please solve in 15 min

Exercise 2 (from chapter 6) For the diagram below, set up the following items; Kirchhoff loop for the bottom loop of the diagram. Kirchhoff loop for the top loop of the diagram. Kirchhoff loop for junctions A and B.

Define permeability in brief.

Explain why voltage spikes and surges are occurrences. high-frequency

7. What can you conclude about the sum of potential differences in a circuit loop? 8. What is the current in the loop? ____A?

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16.  The total voltage in a series-parallel circuit is __________     equal to the sum of the voltage drops across each resistor in the circuit.     distributed across each branch in the circuit.     determined by the product-over-sum method.     equal to the voltage drop of the parallel branch. Which of the following statement is true both for a series and a parallel DC circuit?     powers are additive     voltages are additive     currents are additive     elements have individual currents Electric power is the ________     same as electric pressure.     total number of electrons flowing in a circuit.     number of electrons passing a given point in one second.     rate of using or producing electric energy. A battery produces a current of 0.6 A when the external resistance is 2 ? and 0.2 A when the external resistance is 12 ?. Find the emf of the battery     3 V     6 V     9 V     12 V