Question 1:

i. Calculate the total resistance of the circuit below.

ii. In the circuit diagram below, meters 1 and 2 are connected as shown. Write 2 - 3 sentences identifying each type of meter and what it measures for the 8 Ω resistor.

iii. In the circuit diagram below, predict which resistors will stop working (if any) when the switch is opened. Write 2 - 3 sentences explaining your reasoning.

A75-hp (shaft output) motor that has an efficiency of 91.0 percent is worn out and is to be replaced by a high-efficiency motor that has an efficiency of 95.4 percent. the motor operates 4368 hours a year at a load factor of 0.75. taking the cost of electricity to be $0.12/kwh, determine the amount of energy and money saved as a result of installing the high-efficiency motor instead of the standard motor. also, determine the simple payback period if the pu