CBSE Class 10: Resistors in Series and Parallel Videos | Electricity

• what are the advantages of parallel combination over series
• find Req
  
• resistivity
• find the new resistance of wire length l area of cross section A if it is folded 4 times
• finding the net resistance  
  
• the resistance of a wire of 0.01 cm radius is 10 ohm.if the resistivity of the material of the wire is 50*10^-8 ohm meter find the length of the wire
• Nichrome wire of length L and radius R has resistance 10 ohm.How would the resistance of the wire change when: only diameter of the wire is doubled?Justify 
• A given length of a wire is doubled of itself and this process is repeated once again.By what factor does the resistance of the wire changes?
•  A 6 ohm resistance is doubled by folding,what is the new resistance?
• Equivalent resistance 
  

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