Specific resistance of a conductor increases with :
The value ρ does not depends on geometry but increases with increase in temperature.
The speed of a boat in still water is 32km/hr and the speed of the current is 8km/hr. It takes a total of 15hours to row to upstream from Point A to B a...
The downstream speed of a boat is 8 km/hr more than its upstream speed and the ratio of the speed of the boat in still water to the speed of the stream ...
Find the total distance covered by boat in each upstream and downstream in 7 hours if the speed of boat in still water and speed of current is 25 km/h a...
The speed of the boat in still water is 6 km/hr and the speed of the stream is 3 km/hr. A boat goes 108 km downstream with its usual speed but at the ti...
A boat goes 60 km upstream in 4 hours and 50 km downstream in 2 hours, then the speed of the boat in still water is
A boat can cover 145 km in downstream in 5 hours and 144 km in upstream in 8 hours. Find the speed of boat in still water.
The velocity of a vessel in calm waters is 4.5 times the speed of the current. If the disparity between the boat's speed when moving against the current...
The velocity of a boat when moving downstream is 18 km/h greater than the speed of the stream. If it takes the boat 8 hours to travel 192 km downstream,...
When travelling downstream, a boat takes 6.25 hours to travel 275 km. If the speed of the stream is (4/11)th of downstream speed of the boat,...
Sumit can swim 12 km upstream and 16 km downstream in 5 hours. If ratio of speed of stream to that of speed of Sumit in upstream is 1:2, then find the s...
