An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the length and radii of the wires are in the ratio `2//3 and 4//3`, then find the ratio of the current passing through the wires
Text Solution
Verified by Experts
`R_(1)/R_(2) = (rho l_(1)//pi r_(1)^(2))/(rho l_(2) // pi r_(2)^(2)) = (l_(1))/(l_(2)) xx r_(2)^(2)/r_(1)^(2) = 2/3 xx (3/4)^(2) = 3/8` For wires connected in parllel `V_(1) = V_(2) or I_(1)R_(1) = I_(2)R_(2)or I_(1)/I_(2)=R_(2)/R_(1) = 8/3`
Topper's Solved these Questions
CURRENT ELECTRICITY
PRADEEP|Exercise Conceptual Problems|3 Videos
CURRENT ELECTRICITY
PRADEEP|Exercise Very short Q/A|7 Videos
COMMUNICATION SYSTEMS
PRADEEP|Exercise MODEL TEST PAPER-2|9 Videos
DUAL NATURE OF RADIATION AND MATTER
PRADEEP|Exercise Exercise|191 Videos
Similar Questions
Explore conceptually related problems
An electric current is passed through a circuit containing two wires of the same material connected in parallel. If the lengths and radii of the wire are in the ratio (4)/(3) and (2)/(3) , then the ratio of the currents passing through the wires will be
An electric current is passed through a circuit containing two wires of same material, connected in parallel. If the lengths and radii of the wires are in the ratio of 3:2 and 2:3, then the ratio of the current passing through the wire will be
An electric current is passed through a circuit containing two wires of the same material, connected in parallel. If the lengths and radii are in the ratio of 4/3 and 2/3, then the ratio of the current passing through the wires will be
An electric of 5A is passing through a circuit contaning three arrengement in parallel if the length and radius of the wires are in the ratio 2:3:4 and 3:4:5 then the ratio of current passing through wires should be
Two wire of the same material and length stretched by the same force. If the ratio of the radii of the two wires is n : 1 then the ratio of their elongations is
The electric current passes through a metallic wire produces heat because of :
PRADEEP-CURRENT ELECTRICITY-Problems for Practice (B)