A series circuit consists of a battery of negligible internal resistance, a variable resistor, and electric...
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A series circuit consists of a battery of negligible internal resistance, a variable resistor, and electric motor of negligible resistance. The current in the circuit is 2 amperes when the resistance in the circuit is adjusted to 10 ohms. Under these conditions the motor lifts a 1.0 kg mass vertically at a constant speed of 2 m/s. a) Determine the electrical power that is: i. dissipated in the resistor ii. used by the motor in lifting the mass iii. supplied by the battery b) Determine the potential difference across Banery" i. the resistor ii. the motor iii. the battery Variable Resistor 2A Motor 1 kg 2 m/s The resistor is now adjusted until the mass rises vertically at a constant speed of 3 m/s. The voltage drop across the motor is proportional to the speed of the motor, and the current remains constant. c) Determine the voltage drop across the motor. d) Determine the new resistance in the circuit. A series circuit consists of a battery of negligible internal resistance, a variable resistor, and electric motor of negligible resistance. The current in the circuit is 2 amperes when the resistance in the circuit is adjusted to 10 ohms. Under these conditions the motor lifts a 1.0 kg mass vertically at a constant speed of 2 m/s. a) Determine the electrical power that is: i. dissipated in the resistor ii. used by the motor in lifting the mass iii. supplied by the battery b) Determine the potential difference across Banery" i. the resistor ii. the motor iii. the battery Variable Resistor 2A Motor 1 kg 2 m/s The resistor is now adjusted until the mass rises vertically at a constant speed of 3 m/s. The voltage drop across the motor is proportional to the speed of the motor, and the current remains constant. c) Determine the voltage drop across the motor. d) Determine the new resistance in the circuit.
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a Determine the electrical power that is i dissipated in the resistor The power dissipated in the re... View the full answer
Related Book For
College Physics
ISBN: 978-0495113690
7th Edition
Authors: Raymond A. Serway, Jerry S. Faughn, Chris Vuille, Charles A. Bennett
Posted Date:
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