<span>Disadvantages:
One of the main disadvantages is the initial cost of the equipment used
to harness the suns energy. Solar energy technologies still remain a
costly alternative to the use of readily available fossil fuel
technologies. As the price of solar panels decreases, we are likely to
see an increase in the use of solar cells to generate electricity.
A solar energy installation requires a large area for the system to be
efficient in providing a source of electricity. This may be a
disadvantage in areas where space is short, or expensive (such as inner
cities).
Pollution can be a disadvantage to solar panels, as pollution can
degrade the efficiency of photovoltaic cells. Clouds also provide the
same effect, as they can reduce the energy of the suns rays. This
certain disadvantage is more of an issue with older solar components, as
newer designs integrate technologies to overcome the worst of these
effects.
Solar energy is only useful when the sun is shining. During the night,
your expensive solar equipment will be useless, however the use of solar
battery chargers can help to reduce the effects of this disadvantage.
The location of solar panels can affect performance, due to possible obstructions from the surrounding buildings or landscape.
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Explanation:
an electrical load is the part of an electrical circuit in which current is transformed into something useful. examples include a lightbulb, a resistor and a motor. a load converts electricity into heat, light or motion. put another way, the part of a circuit that connects to a well-defined output terminal is considered an electrical load.
F=ma
50=100a
a=50/100
a=0.5 m/s^2
Answer:
light is an example of a wave that is not mechanical .
it is different as it does not need material medium for its propagation
Answer:
False, True, False, True
Explanation:
Given a square loop of a wire having a small resistance and moving with a constant sped from the free region to a region having a region having a uniform field B. It is then moved back to the left in the free field region.
For the following statements :
While the loop is entirely in the field, the emf in the loop is zero. -- TRUE
The emf of the coil is zero when the coil moves into the field from a free region field to a uniform field region field.
When entering the field the coil experiences a magnetic force to the left ---- FALSE
According to the Lenz law, a loop entering the field opposes it and moves towards the right.
When leaving the field the coil experiences a magnetic force to the right. --- TRUE
Upon entering the field, a clockwise current flows in the loop. ---- TRUE
In the field the coil or the loop tries to oppose the magnetic field and forces the current in the loop to move in a clockwise direction.