Physics Current Electricity Level: University
Ohm's Law and grouping of resistanceDetermine the cunents I1 and I2
Question Diagram
Physics Current Electricity Level: University
ResistanceDetermine the total resistance.
Question Diagram
Physics Current Electricity Level: University
How much current will flow through the 8.0 Ohm resistor?a. 1.0A
b. 0.29A
c. 0.50A
d. 2.0 A
e. none of the other responses is
Question Diagram
Physics Current Electricity Level: University
Current & ChargeIn a certain DC circuit 1.50A of current flows through a 4.00 Ohm metal resistor for a period of 90.0S. During this time interval what is the net number of electrons that have passed through a cross- section of the resistor?
a. 135
b. 8.43 x 10^20
C. 3.37 x 10^21
d. 1.04 x 10^17
e. 5.06 x 10^21
Physics Current Electricity Level: University
For the circuit shown what is the magnitude of the potential difference across the 6.00 Ohm resistor?
a. 4,50V
b. 3.60 V
c. 6.00 V
d. 6.75 V
e. 1.80 V
Question Diagram
Physics Current Electricity Level: University
Power and ResistanceAn electric heater is basically a wire through which the electric current flows. What is the resistance of such a heater if its power is 1000W and it is used in a regular home so that the voltage is 110 V.
Physics Current Electricity Level: University
Electrical EnergySuppose a room has two 100-watt light bulbs. How much is the electricity bill per month ( 30 days) if the light bulbs are all you are paying for and they are used everyday 4 hours per day? The electricity cost is 15 cents per kWh.
Physics Current Electricity Level: University
Find the magnitude and direction of the current through R1 and R2 in the circuit assuming each battery has an internal resistance of 1.2 ohms.
(b) What is the voltage drop across R1?
(c) What is the power dissipated in R2?
Question Diagram
Physics Current Electricity Level: University
OHM S LawA lightning bolt contains approximatly 10,000 V of electricity. The resistance of the human body to DC current is approximatly 1786 OHM S. What is the current flowing through your body if hit by lightning?
Physics Current Electricity Level: University
Current powerA Christmas light set consist of 40 identical bulbs in series across a 120V line. If the total power used is 140 W what is the resistance of each bulb?
Physics Current Electricity Level: University
PowerA person bumps into a set of batteries with an emf of 100.0 V that can supply a maximum power of 5.0W. If the man's resistance between the points where he contacts the batteries is 1.0 k Ohm how much current passes through him?
Physics Current Electricity Level: University
MeasurementA galvanometer is to be turned into a voltmeter that deflects full scale for a potential difference of 100.0V. What size resistor should be places in series with the galvanometer if it has an internal resistance of 75 Ohm and deflects full scale for a current of 2.0 mA?
Physics Current Electricity Level: University
What is the current in a 60.0 W bulb when connected to a 120-V emf?
Physics Current Electricity Level: University
ResistanceWhat is the resistance between points A and B in the following?
Question Diagram
Physics Current Electricity Level: University
ResistanceAn aluminum bus bar has the dimensions 0.50 cm x 2.0 cm x 20.0 m . What is the resistance at 20degree C?
