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Electric Circuits
Point A is at position (3j -4k)cm. Point B is at position -4cm k. Point C is at position (3i -2j + 5k) cm. Point D is at position 3cm j. Charges of +4 and -9uC are at A and B respectively. What is the electric potential energy of an electron at D?
e=1.6x10^-19C and k=9x10^9 Nm^2/C^2
e=1.6x10^-19C and k=9x10^9 Nm^2/C^2
Electric Circuits
A capacitor has a total charge of 6 µC stored. If it were possible to transfer this charge uniformly through a light with a current of 100 mA, how long would the light stay lit?
Electric Circuits
What is the strength of the electric field between two charged parallel plates that are 0.25 cm apart and have a potential of 9.0 V?
Electric Circuits
In electric current does positive charge flow or not ??? i know that electrons flow from -ve terminal to +ve terminal but i don't know that whether during electric current +ve charge flow or not .
PLZ EXPLN ME IN DETAIL....
PLZ EXPLN ME IN DETAIL....
Electric Circuits
If you use 20 J of work to push a 2-C charge into an electric field, its voltage with respect to its starting postition is A. 10 V, B. less than 10 V, C. more than 10 V
Electric Circuits
A tarantula of height 2.0cm is sitting in front of a spherical mirror with focal length of magnitude |f| = 4.0cm. The tarantula sees an image of itself that has a height of 0.40cm and appears upright.
Is the mirror concave or convex and what are the characteristics of the image
Is the mirror concave or convex and what are the characteristics of the image
Electric Circuits
two capacitor of capacitance 4 microfarad are charged to the potential difference of 300 volts n 400 volts respectively they are then connected in parallel what will be the resultant potential difference &charge on each capacitor??
Electric Circuits
a base ball is thrown straight upward on the Moon with an initial speed of 35m/s^-1.Compute a) the maximum height reached by the ball b) the time taken to reach that height c) its velocity 10s after it is thrown and d) when the balls height is 50m.
Electric Circuits
the driver of a train travelling at 30 ms^-1 applies the brakes as the train enters a station. The train slows down at the rate of 4 m/s^-2. The platform is 400m long.Will the train stop in time?
Electric Circuits
On July 25, 1956, the linear Andrea Doria, of mass 4.1x10^7 kg, was heading west at 40 km/hr. it collided off Nantucket Island with the Stockholm, of mass 1.7x10^7 kg, sailing 30 km/hr in the direction 20 degrees east of north. the bow of the Stockholm temporarily lodged in the side of the Andrea Doria; that is, the collision was perfectly inelastic.
a) find their common velocity (speed and direction) just after collision
b) what was the loss in kinematic energy due to the collision?
a) find their common velocity (speed and direction) just after collision
b) what was the loss in kinematic energy due to the collision?
