A cell has a voltage (E) of 2.1 volts, an internal resistance (r) of 0.9 ohms, and is connected to an electromagnet with a resistance (R) of 0.3 ohm. What current, in amps, will the electromagnet receive? Carry the answer to two decimal places.
Fill in the blank(s) with the appropriate word(s).
1.75
You might also like to view...
Answer the following statement(s) true (T) or false (F)
1. Plunger type voltage testers can be used to test control systems that operate on low voltage, such as 24 volt systems. 2. When deenergizing or energizing a control cabinet or motor control center module, the electrician should be dressed in flame retardant clothing while wearing safety glasses, a face shield, and hard hat. 3. Overload relays are intended to disconnect the motor from the power line in the event that the current draw becomes excessive. 4. When using an ohmmeter, make certain that the power is connected to the circuit. 5. Megohmmeters can develop voltages that range from 250 to 500,000 volts depending on the model of the meter and the range setting.
Brake pedal feedback to the driver is provided by the ________
A) Charcoal filter unit B) Reaction system C) Vacuum diaphragm D) Vacuum check-valve operation
Technician A says that an upper coupler kingpin template is used to verify that a kingpin is in satisfactory condition. Technician B says that a kingpin plug is used both when testing and reassembling 5th wheels. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
A(n) ____ hole is a cone-shaped recess machined in a part to receive a coneshaped flathead screw or bolt.
A. countersunk B. extension C. chamfered D. counterbored