(a) What is an electric circuit?
(b) Calculate the number of electrons that flow per second to constitute a current of one ampere. Charge on an electron is 1.6 x 10-19C.
(c) Draw an electric circuit for studying Ohm's law. Label the circuit component used to measure electric current and potential difference.
Asked by Topperlearning User | 24th Jul, 2017, 09:48: AM
(a) A continuous conducting path consisting of wires and other resistances (like electric bulb, etc.) and a switch, between the two terminals of a cell or a battery along which an electric current flows, is called an electric circuit.
Answered by | 24th Jul, 2017, 11:48: AM
- explain ohms law
- To find rarional btw potential difference and current
- define ohms law
- Please find the attached question,
- How many 176 ohm resistors ( in parallel) are required to carry 5A on a 220V line?
- Why resistance will increase to 3 times when length is increased 3 times and will not increase to 9 times?
- A battery of 9V is connected in series with resistors of 0.2 ,0.3, 0.4, 0.5, and 12 . How much current would flow through the 12 resistor?
- A bulb is rated as 60W , 220V . what does it mean?
- Fig a,b,c show three cylindrical copper conductors along with their face areas and length.Compare the resistance and the resistivity of the three conductors justify your answer.Which geometry will have highest resistance and why?
- In an experiment on studying the dependence of current (i) flowing through a given resistor on the potential difference (v) applied across it, list two ways how a student would change the values of current in the circuit?
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