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According to Lorentz force law, a currentcarrying conductor in a magnetic field experiences a force perpendicular to both the magnetic field and the current. This is the principle behind electric motors. The direction of the force can be found using Fleming's lefthand rule
Speed of a car and a bus is 20 km/h and 10 km/h, respectively. If the time taken by the car to cover a distance of ‘9x’ km is 4 hour less than time ...
Ajay and Vishal left the place ‘X’ with different speeds which are in the ratio 3:2 respectively. Ajay left the place 42 seconds after Vishal. If af...
In a 500-metre race, ‘A’ beats ‘B’ by 15 seconds or 75 metres. Find the time taken by ‘B’ to finish the race.
A journey over a certain distance takes 4 hours longer when traveling at a speed of 12 km/h compared to traveling at a speed of 16 km/h. Determine the t...
A bike moving at a speed of 240 km/h takes 5 hours to reach the fuel station. If the target must be reached within 80 minutes, at...
A was travelling from point X to point Y. He increased his speed by 18 km/h after every hour. He reached his destination in 20 hours. If his initial spe...
A person crosses a 1800 m long street in 5 min. What is his speed (in km/h)?
A person traveled 140 km in 3 hours. For the first 2 hours, he traveled at 60 km/h. What was his speed during the last hour?
A car travels at a speed of 60 km/h for the first 2 hours, then at 80 km/h for the next 3 hours, and finally at 100 km/h for the last 1 hour. What is th...
A train passes two people who are walking in the opposite direction of the train at the rates of 4 m/s and 10 m/sec in 12 seconds and 10 seconds respect...
