If the potential difference across a resistor is doubled

Asked by admin @ 20/08/2021 in Physics viewed by 312 People

"If the potential difference across a resistor is doubled: "? "A. only the current is doubled B. only the current is halved C. only the resistance is doubled D. only the resistance is halved,, the answer is A, why?

Answered by admin @ 20/08/2021

Because potential difference is directly proportional to current hence, when potential diff. will be doubled the current will get doubled as well

What is the potential difference across the 10 ? resistor

Asked by admin @ 02/08/2021 in Physics viewed by 325 persons

What will be the potential difference across 10 ohm resistor?

The plot of the variation of potential difference across

Asked by admin @ 23/08/2021 in Physics viewed by 255 persons

The plot of the variation of potential difference across a combination of three identical cells in series, versus current is as shown here. What is the emf of each cell?

When 5v potential difference is applied across a wire

Asked by admin @ 17/08/2021 in Physics viewed by 477 persons

When 5V potential difference is applied across a wire of length 0.1, the drift speed of electrons is 2.5× 10-4m/s if the electron density in the wire is 8× 1028m-3, …

Find the potential difference across the capacitor in volts

Asked by admin @ 16/08/2021 in Physics viewed by 363 persons

Find the potential difference across the capacitor in volts. WWW10V(A) 7.(B) 8(C) 9(D) 10

The potential drop across the 3 ohm resistor is

Asked by admin @ 17/08/2021 in Physics viewed by 343 persons

The potential difference across the 3 ohm resistor in the following diagram is:

Device that helps to maintain potential difference across a conductor

Asked by admin @ 24/08/2021 in Physics viewed by 350 persons

Name a device that helps to maintain a potential difference across a conductor.

Si unit of potential difference

Asked by admin @ 24/08/2021 in Physics viewed by 319 persons

7. SI Unit of potential difference and e.m.f.is________

Difference between double account system and double entry system

Asked by admin @ 16/08/2021 in Science viewed by 330 persons

Difference between double account system and double entry system

Difference between double account system and single account system

Asked by admin @ 16/08/2021 in Social Sciences viewed by 324 persons

Difference between single account system and double account system

How will you conclude that the same potential difference

Asked by admin @ 16/08/2021 in Physics viewed by 375 persons

how will you conclude that the same potential difference exists across three resistors connected in a parallel arrangement to a battery

A proton accelerated through a potential difference of 100v

Asked by admin @ 16/08/2021 in Physics viewed by 391 persons

A proton is accelerated through a potential difference of 400V to have same de broglie wavelength what potential difference must be applied across doubly ionised 8O16 atom A.50V. B.12.5V C.100V. …

What do you understand by the term potential difference

Asked by admin @ 12/08/2021 in Physics viewed by 331 persons

Question 16: (a) What do you understand by the term “potential difference” ? (b) What is meant by saying that the potential difference between two points is 1 volt ? …

What is the relationship between power current and potential difference

Asked by admin @ 03/08/2021 in Physics viewed by 321 persons

What is the relationship between power, current and potential difference

What is the potential difference vc−va?

Asked by maham237 @ 25/12/2020 in Physics viewed by 306 persons

It takes 3.0 μJ of work to move a 17 nC charge from point A to B. It takes -6.5 μJ of work to move the charge from C to …

What was the potential difference that stopped the proton?

Asked by maham237 @ 22/12/2020 in Physics viewed by 316 persons

Proton with an initial speed of 800000 m/s is brought to rest by an electric field. Part A- Did the proton move into a region of higher potential or lower …