Homework Answers
V/A - Resistance
(J.A)/C - Power [ since J/C = Potential ]
(V/ohm).S - Charge [ since V/ohm = current and Current * Time = Charge]
W/V - Current
V.A.S - Energy
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Q2) Identify the following electrical units as one of the following: potential, current, energy, power, resistance,...
answer all parts ELECTRICAL EQUATIONS: Current (A) = Charge (C) / Time (5) | Energy (1) = Potential Difference (V)...
answer all parts
ELECTRICAL EQUATIONS: Current (A) = Charge (C) / Time (5) | Energy (1) = Potential Difference (V) x Charge C Power (W) = Energy D / Time (s) Conversion Physical Constants: Factors: 1A=1C/s Charge of e- 1.60 x 10°C 1 -1 VC Faraday - 96,485 C/mol 1W= 1 J/s 1. How much energy is required to move 2.53 x 104 Coulombs of charge through a potential difference of 110.0 volts? 2. A steady 2.0 ampere current exists...
Find the uncertainty in a calculated electrical potential difference from the measurements of current and resistance....
Find the uncertainty in a calculated electrical potential difference from the measurements of current and resistance. Electric potential difference depends on current and resistance according to this function V(I,R) = IR. Your measured current and resistance have the following values and uncertainties I = 3.3 Amps, delta I space equals space 0.9 Amps and R = 87.5 Ohms and delta R space equals space 0.8 Ohms. What is the uncertainty in the , delta V
20.64 Electric Power and Energy Assuming 91.0% efficiency for the conversion of electrical power by the...
20.64 Electric Power and Energy Assuming 91.0% efficiency for the conversion of electrical power by the motor, what current must the 84.0-V batteries of a 690-kg electric car be able to supply: To accelerate from rest to 22.0 m/s in 1.00 min? Figure caption: This REVAi, an electric car, gets recharged on a street in London. (credit: Frank Hebbert) Submit Answer Tries 0/10 To climb a 190-m-high hill in 2.00 min at a constant 22.0-m/s speed while exerting 410 N...
1) An electric heater consumes electrical energy at a rate of P = 150 W when...
1) An electric heater consumes electrical energy at a rate of P = 150 W when connected to a battery with an emf of 120 V. (a) What is the current in the heater? A (b) If you wish to increase the power consumption to 300 W, by what factor should the heater resistance be changed? Rfinal Rinitial = (c) What is the maximum power that could be drawn if the circuit contained a circuit breaker that limited the current...
Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the...
Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 678-kg electric car be able to supply to do the following? (a) accelerate from rest to 25.0 m/s in 1.00 min A (b) climb a 200-m high hill in 2.00 min at a constant 25.0 m/s speed while exerting 353 N of force to overcome air resistance and friction A 00 gauge copper wire has a diameter of 9.266 mm....
In which case an electromotive force is consuming electrical energy from the electrical circuit?
14 In which case an electromotive force is consuming electrical energy from the electrical circuit? Electromotive force is always consuming electrical energy from the electrical circuit. When the electrical current is passing through the electromotive force from its negative to positive terminals. Electromotive force is always producing electrical energy to the electrical circuit. When the electrical current is passing through the electromotive force from its positive to negative terminals.15. A capacitor of capacitance C, has initially a charge Q. is connected to a resistor of resistance...
1. What is the emf of a battery that increases the electric potential energy of 0.050...
1. What is the emf of a battery that increases the electric potential energy of 0.050 C of charge by 0.60 J as it moves from the negative to the positive terminal? 2 .A thermistor is a device whose resistance varies with temperature. At 20∘C a thermistor's resistance is 10.0 kΩ. When connected to a 1.2 V battery, the current through the thermistor increases by 20 μA as the temperature increases to 30∘C. What is the thermistor's resistance at this...
1. The electrical potential energy of a 3 C object and a -9 C object separated...
1. The electrical potential energy of a 3 C object and a -9 C object separated by 4 m relative to the charges being infinitely far apart is ____ J. 2.The electric potential field value 5 m away from a 10 C charge relative to a point infinitely far away is ____ V. 3.The final speed of an electron accelerated from rest through a potential difference of 100 V is ____ m / s.
2) A resistor of unknown resistance is connected to a power supply capable of producing electrical...
2) A resistor of unknown resistance is connected to a power supply capable of producing electrical potentials from 0 volts to 10.0 volts. A student connects an ammeter in series with the power supply and resistor so that he can record the current flowing through the system. He produces the chart shown below. Potential Difference vs. Current M Potential Diff (V) 1.0 0.01 0.02 0.03 0.04 2.0 Current (A) 0.008 0.018 0.026 0.035 0.047 Current (A) 4.0 a. Label the...
a) For the above current at 5.21 V, how much electrical energy (in kw-hr) is consumed...
a) For the above current at 5.21 V, how much electrical energy (in kw-hr) is consumed in the production of 1 kg of aluminum? (The electrical energy or work =qV and 1 kW-hr is 3.6 x106 J.) b) Calculate the potential of the Pb/Pb(IO3)2 electrode in a 0.00057 M solution of NaIO3. c) Air is 21 mole percent oxygen, that is, 0.21 atm oxygen at 1 atm. Suppose the pH of the water is 5.28 and that the concentration of...
answer all parts
ELECTRICAL EQUATIONS: Current (A) = Charge (C) / Time (5) | Energy (1) = Potential Difference (V) x Charge C Power (W) = Energy D / Time (s) Conversion Physical Constants: Factors: 1A=1C/s Charge of e- 1.60 x 10°C 1 -1 VC Faraday - 96,485 C/mol 1W= 1 J/s 1. How much energy is required to move 2.53 x 104 Coulombs of charge through a potential difference of 110.0 volts? 2. A steady 2.0 ampere current exists...
20.64 Electric Power and Energy Assuming 91.0% efficiency for the conversion of electrical power by the motor, what current must the 84.0-V batteries of a 690-kg electric car be able to supply: To accelerate from rest to 22.0 m/s in 1.00 min? Figure caption: This REVAi, an electric car, gets recharged on a street in London. (credit: Frank Hebbert) Submit Answer Tries 0/10 To climb a 190-m-high hill in 2.00 min at a constant 22.0-m/s speed while exerting 410 N...
Assuming 95.0% efficiency for the conversion of electrical power by the motor, what current must the 12.0-V batteries of a 678-kg electric car be able to supply to do the following? (a) accelerate from rest to 25.0 m/s in 1.00 min A (b) climb a 200-m high hill in 2.00 min at a constant 25.0 m/s speed while exerting 353 N of force to overcome air resistance and friction A 00 gauge copper wire has a diameter of 9.266 mm....
2) A resistor of unknown resistance is connected to a power supply capable of producing electrical potentials from 0 volts to 10.0 volts. A student connects an ammeter in series with the power supply and resistor so that he can record the current flowing through the system. He produces the chart shown below. Potential Difference vs. Current M Potential Diff (V) 1.0 0.01 0.02 0.03 0.04 2.0 Current (A) 0.008 0.018 0.026 0.035 0.047 Current (A) 4.0 a. Label the...
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