Answering Electric Current Questions

High School
Physics
Electric current

What are the methods of reducing friction?

Will Osborn 2022-11-24

Silver is a bad conductor of electricity. A)True B)False

Giovanna Shaw 2022-11-24

What is the maximum number of electrons an M shell of the atom can accomodate?

Jana ahmed samir ali younes .2022-11-19

A small object has charge Q. Charge q is removed from it and placed on a second small object. The two objects are placed 1 m apart. For the force that each object exerts on the other to be a maximum. q should be: A. 2Q B. Q C. Q/2 D. Q/4 E. 0

pighead73283r 2022-11-11

Consider a resistor of resistivity $4.12 \times 10^{- 8} Ω \cdot m$ . If an electric field of 19 V/m is applied across the resistor and the electron volume concetration in the conductor is $5.82 \times 10^{28} / m^{3}$ , determine the drift velocity, in mm/s, of the free electron constituting the current.

Marley Meyers 2022-10-31

On which factors does resistivity depends?

Nigro6f 2022-10-22

Find the electric field and the resistivity of a 400cm long wire having a diameter of 0.4cm and carrying I= 3A and having a $Δ V = 4 V$

Riya Andrews 2022-10-09

The resistivity of certain metals becomes zero at
Select one:
a. Very low temperatures
b.Very high temperatures
c. Room temperatures
d. 0

Deanna Gregory 2022-10-09

Why does the resistivity of superconductors become zero?

Diana Lamb 2022-10-05

At what speed does electric information go?Consider a parallel circuit with each branch of equal resistance. If you increase the resistance of the further branch, how long would it take to detect that from the intersection (since (the majority of the) current takes the path of least resistance)?

solvarmedw 2022-09-30

A ribbon of material with a rectangular cross sectional area of (0.25 mm x 1.00 mm), length 21.9 cm and resistance 1.5 is used as a heating element in a toaster. What is the resistivity of the material?
$a) 1.31 \times 10^{- 6} Ω \cdot m b) 1.00 \times 10^{- 6} Ω \cdot m c) 1.71 \times 10^{- 6} Ω \cdot m d) 1.97 \times 10^{- 6} Ω \cdot m e) 1.50 \times 10^{- 6} Ω \cdot m$

thamizh selvi 2022-09-24

Find the current drawn by a 1OOO-W steam iron from a 120-V line.

fion74185296322 2022-09-24

Why does current follow the path of least resistance? Will all current pass through a wire with 0 resistance in a junction leaving other resistive wires with no current?

zaviknuogg 2022-09-24

Question 1) Define the term resistance? How it is different from resistivity?
What will be the change is resistance if-
a) Length is doubled? b) Area of cross section is halved?

skauvzc 2022-09-23

Q/4 In terms of resistivity and conductivity
Oil is high or low
Water is high or low

acsalagi3l 2022-08-22

1. The resistance of a wire of length 10 m is 2 ohm. If the area of cross section of thewire is $2 \times 10^{- 7} m^{2}$ , determine its (a) resistivity, and (b) conductivity
2. Calculate the (a) resistivity and the (b) conductivity of a material that has a lengthof 15 m and a cross-sectional area of $5 \times 10^{- 8} m^{2}$ and a resistance (R) of 5 $Ω$

dejanimaab 2022-08-22

An insulated extension cord is made of a 1.5-meter long copper rod with a diameter of 2.3 millimeters. (a) What is the resistance of the extension cord? (b) If an aluminum wire of the same length will be used instead of copper what should be the diameter of the aluminum wire to have the same resistance?

nascarchic839e9 2022-08-22

On what does the resistivity of a material depend?

Shyla Odom 2022-08-21

A wire with resistivity $1.8 \times 10^{- 7} Ω m$ has a resistance of $0.45 Ω$ and a length of 2.0 m. What is the diameter of the wire in mm?

Yareli Bowman 2022-08-21

A 89.1-kN car is travelling at 73.1 mph when the driver decides to exit the freeway by going up a ramp. After coasting 411 m along the exit ramp the car\'s speed is 28.5 mph, and it is h = 14.3 m above the freeway. What is the magnitude of the average drag force exerted on the car?

The practical use of the electric current problems is met basically everywhere even if you are not majoring in Engineering. Take an example of data programming and the use of safety (data transfer) questions when the data is being transferred from place to place via cloud storage solutions. The same is related to automation and logistics where the electric current equation will help to calculate the limitations and the available resources. See some answers to the questions dealing with the electricity principles to get a better idea of how it works and compare the existing solutions to your task objectives!

Electric current

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