## Charging a solar cell, Physics

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Charging: During charging the device is linked across a source of D.C. supply having a voltage of about 3 volts. When the circuit is switched on the current flows inside the cell by ions and outside the cell by electrons.

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Does the force constant of a spring changes if it is cut into parts?

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types of friction

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Factors which are affect velocity of sound in gaseous medium is (1) Effect of density (2) Effect of pressure (3) Effect of temperature :      (4) Effect of humidity

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What is Heat? We now have several scales for measuring temperature, but first let's ask, “Is temperature the same as heat?” If I add heat to a pot of water, the water's temperatu

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River Boat Vectors and Projectiles Suppose the motion of the river boats below. Within that case, the boat is heading across the river. Inside the top case, the presence of a c

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A lead bullet moves horizontally with a velocity of 130 ms-1 and embedded into a cement wall after collision. If the specific heat capacity of lead = 130 JKg-1°C-1 and all heat pro

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what are the condition for obtaining straight line fringes

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Can instantaneous velocity answer instantaneous speed be equal in uniform motion

#### Must all illuminator have forced ventilation, Must all illuminator have for...

Must all illuminator have forced ventilation? Usually yes, the exception being which with a massive construction that dissipate heat by transfer or radiation.