indus valley civilization

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1. What is a simpler way of expressing: (i) 0.000 005 A and (ii) 3 000 000 V? 2. A potential difference (p.d) of 6V causes a current of 0.6 A in a conductor. Calculate the resistance of the conductor. 3. Find the p.d required to pass a current of 5A through a conductor having resistance=8 Ohms. 4. A 960 Ohms lamp is connected to a 240V supply. Calculate the current in the lamp and its power consumption. 5. A p.d of 1.35V causes a current of 465 microAmperes to flow in a conductor. Calculate the resistance of the conductor. 6. An accidental short circuit to a 240V supply is caused by the connection of a component of 8.5 milliOhms across the supply terminals. What will be the short circuit current? 7. What is the voltage across an electric heater of 5Ohms through which passes a current of 22A? 8. A p.d of 12V is applied to a 7.5Ohms resistor for a period of 5 seconds. Calculate the electric charge (in Coulombs) transferred in this time period. 9. A voltage of 20V is required to cause a current of 2A to flow in a resistor of resistance 10Ohms. What voltage will be required to flow the same amount of current if the resistance were 40Ohms.

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Page 1: indus valley civilization

1. What  is  a  simpler  way  of  expressing:  (i)  0.000  005  A  and  (ii)  3  000  000  V?  2. A  potential  difference  (p.d)  of  6V  causes  a  current  of  0.6  A  in  a  conductor.  

Calculate  the  resistance  of  the  conductor.  3. Find  the  p.d  required  to  pass  a  current  of  5A  through  a  conductor  having  

resistance=8  Ohms.  4. A  960  Ohms  lamp  is  connected  to  a  240V  supply.  Calculate  the  current  in  

the  lamp  and  its  power  consumption.  5. A  p.d  of  1.35V  causes  a  current  of  465  micro-­‐Amperes  to  flow  in  a  

conductor.  Calculate  the  resistance  of  the  conductor.  6. An  accidental  short  circuit  to  a  240V  supply  is  caused  by  the  connection  of  

a  component  of    8.5  milli-­‐Ohms  across  the  supply  terminals.  What  will  be  the  short  circuit  current?  

7. What  is  the  voltage  across  an  electric  heater  of  5-­‐Ohms  through  which  passes  a  current  of  22A?  

8. A  p.d  of  12V  is  applied  to  a  7.5-­‐Ohms  resistor  for  a  period  of  5  seconds.  Calculate  the  electric  charge  (in  Coulombs)  transferred  in  this  time  period.  

9. A  voltage  of  20V  is  required  to  cause  a  current  of  2A  to  flow  in  a  resistor  of  resistance  10-­‐Ohms.  What  voltage  will  be  required  to  flow  the  same  amount  of  current  if  the  resistance  were  40-­‐Ohms.