Wavenlenth will affect the speed
Answer:
95.38 %
Explanation:
Transformer is an electrical device which has two or more coils of wire used to transfer electrical energy by changing magnetic field
Power of a transformer coil = voltage * Current
Transformer does not require any moving parts to transfer energy. Therefore we cannot see any friction or windage losses here. But they have some types of losses called “copper losses” and “iron losses” but generally these are quite small.
So there for it can affect the efficiency of the transformer also. Efficiency can be defined as follow
Answer:
Potential energy is
Explanation:
Given situation is shown in figure 1
In order to calculate the potential energy at the moment block started moving we first have to calculate the net force acting on the block. For this consider figure 2
<h3>Forces acting in vertical direction:</h3>
Normal force Fn acting on block is in upward direction which is balanced by horizontal component of weight of block acting in opposite direction.
<h3>Forces acting in horizontal direction:</h3>
Tension in string is equal and opposite to frictional force and and vertical component of weight as show in figure 2
Frictional force is:
From (1)
(2) becomes then
If spring is not accelerating then tension in rope must be equal spring force i.e
Then (2) becomes
Potential energy is given as
Answer:
Force = 0.1N
Explanation:
Magnetic force, attraction or repulsion that arises between electrically charged particles because of their motion. ... The magnetic force between two moving charges may be described as the effect exerted upon either charge by a magnetic field created by the other.
Magnitude of the force is given by ILB SIN90 = ILB
where I is current.
L = lenth
B= magnetic component (Tesla)
Force = 10 * 2/100 * 0.5
Force = 0.1N.
The BIG Equation. Newton's second law<span> of motion can be formally stated as follows: The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.</span>