Which of the following resistivities is most likely the resistivity of a metal? O a. 4,000 Q-m O b.3.0 x 1012 Q-m O c. 500 Q-m O d. 5.0 x 10-70-m O e. 70 Q-m

Q: a 20-ohm resistor is connected in parallel with a variable resistor R. the parallel combination is…

A:

Q: What is the total resistance of the circuit? a. 471 ohms b. 593 ohms c. 750 ohms d.…

A: The circuit when plugged to a voltage source, current flows through the circuit consisting of…

Q: What is the electrical resistance of a copper wi

A: Givenr=0.8 mm=0.8×10-3 mL=2 mρ=1.72×10-8 Ωm

Q: A microwave oven uses 10 A of current when connected to a wall outlet that provides 120 V of…

A: Given data : Voltage is represented by V Current is represented by I   Required : Resistance

Q: A microwave oven uses 10 A of current when connected to a wall outlet that provides 120 V of…

A: Given, Current across the microwave oven, I = 10 A Voltage, V = 120 V

Q: A microwave oven uses 10 A of current when connected to a wall outlet that provides 120 V of…

A: Given data:  Current (I) = 10 A Voltage (V) = 120 V Required: Resistance (R)

Q: ong would it take to energy in one gallom

A: Given data: Power provided by electric system of home is 100 A with 220 V.

Q: Which of the following is the correct unit for conductivity? a. m/Ω b. (Ω-m)-1 c.…

A:

Q: Suppose the resistance of a wire is R Ω. What will be the resistance of another wire of the same…

A: The resistance is given by,  R=ρLAR=ρLπr2

Q: A wire with a resistance of 0.40 mm has a resistance 0.5 ohms. A wire of the same material but of…

A: The resistance of a circuit is defined as the limiting force offered by the circuit towards the flow…

Q: A microwave oven uses 10 A of current when connected to a wall outlet that provides 120 V of…

A: Given value--- current = 10 Amp. voltage = 12 V. We have to find--- resistance of microwave oven…

Q: - 9. Assuming the two resistors are identical, the value of I3 in the following circuit is V₁ = 10.0…

A: Solution:-Given that

Q: What is the power of your phone charger if its label reads it 120 V and 15 A?

A: Given Voltage V = 120 V Current I =  15 A

Q: The amount of current following in a circuit was measured to be 1 = 0.00037 A Express in Powers of…

A: Given Current in a circuit = 0.00037 A           To calculate :  conversion into powers of ten

Q: 1- The drawing shows three different resistors in two different circuits. The battery has a voltage…

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Q: These currents are given, 2A, 3A and 5A as shown in the figure. Find the current in 3Ω resistor, the…

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Q: The resistivity of an ohmic material depends on ______. 1 p A. Resistance B. Length of the conductor…

A:

Q: 5. A typical lightning bolt has an average current of 3x10^44 lasting 0.2 s. How much charge is…

A: Given, Current I = 3 x 104 A Time t = 0.2 s   We know the expression for current is I=qtq=It

Q: 11. A typical car seat heater produces 10 W of heat using a 0.25 mm diameter steel wire connected to…

A: The resistance is,

Q: A lightning bolt discharges 3.0 x 1021 electrons in 300 s. What is the average current during the…

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Q: 7. Lightning discharges and lightning occur when charges are separated at different heights in the…

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.