# science

what is the current prouce by a potential difference of 240 volts through a resistance of 0.2 ohms?

1. 👍 0
2. 👎 0
3. 👁 119
1. 👍 0
2. 👎 0
1. V = i R
240 = i (.2)
i = 240/.2 = 2400/2 = 1200 amps (welding current, big sparks)

1. 👍 0
2. 👎 0
posted by Damon

## Similar Questions

What is the current produced by a potential difference of 240 volts through a resistance of 0.2 ohms?

asked by Javier on April 4, 2010
2. ### science

What is the current produced by a potential difference of 240 volts through a resistance of 0.2 ohms?

asked by Haley on April 26, 2011
3. ### physics (thxs again)

Thank you for the help :) A certain sample carries a current of 4A when the potential difference is 2V and a current of 10A when the potential difference is 4V. This samples is: a) obeys ohm's law b) has a resistance of 0.5 ohms

asked by susan on March 14, 2007
4. ### Physics

A circuit consists of 5 resistors and 3 batteries (see diagram); the connecting wires have all a negligible resistance. The values for R1 , R2 , R3 , R4 , and R5 are 14 Ω, 41 Ω, 68 Ω, 83 Ω, and 110 Ωrespectively. The

asked by P on March 13, 2013
5. ### Physics

I need help. Resistor 1: Watts=? Current=? Resistance=520 Volts=? Resistor 2: Watts=? Current=? Resistance=? Volts=57.5 Resistor 3: Watts=? Current=? Resistance=1200 Volts=? Total: Watts=? Current=? Resistance=? Volts=280 Find

asked by Anonymous on September 21, 2013
6. ### science (circuits)

A students finds a resistance in a transistor radio. When the resistance is connected to a battery of 1.5 volts, the current is 0.0025 amperes. When the resistance is connected to four batteries with a voltage of 1.5 volts, the

asked by Anonymous on March 10, 2018
7. ### Physics

1)A 2.0-V battery is connected in a circuit with an ammeter and an unknown resistor, P. The current is observed to be 0.70 A. What would be the current in the circuit if a 12-V battery replaces the 2.0-V battery? A)4.2 A B)6.0 A

asked by Jon on April 9, 2008
8. ### Physics

Three parallel plate capacitors (C1,C2 and C3 ) are in series with a battery of 100 V. C1=2500 micro Farad; C2=2C1 , C3=3C1 . (a) What is the potential difference over each capacitor and how much charge is on each capacitor?

asked by P on March 13, 2013
9. ### Physics

An electron enters a region of space where the potential difference between two equipotential surfaces are 12 cm apart. One surface has a potential of 120 volts and the other potential of 75 volts. What is the magnitude and

asked by Tommy on September 7, 2010
10. ### Physics

A digital voltmeter with high internal resistance gives a maximum reading of 2.0 V. It is used to determine current by measuring the potential difference across a standard resistor S through which current has passed. What should

asked by Priya on February 4, 2016

More Similar Questions