Part B Short Answer Questions: 1. (1) The resistance of a wire of 0.02 cm radius is 40. If the material is copper of resistivity 1.72x10-80m, what is the length of the wire? Answer : length of wire = m (ii) The following table shows the electrical appliances used by a person for every day. No. Electrical No. of Appliances Time of use Appliances 1. Lamp (60W) 8 12 hours/day 2. Electric Heater(1500W) 6 hours/day 3. Refrigerator 24 hours/day 1 (100W) Calculate the electricity bill of the household for the month if the cost per unit of electric energy is 10 Bz/ kWh. (1) Total energy(in kWh) consumed in the month = kWh (2) Electricity bill(in riyals) for the month = riyals
Displacement, Velocity and Acceleration
In classical mechanics, kinematics deals with the motion of a particle. It deals only with the position, velocity, acceleration, and displacement of a particle. It has no concern about the source of motion.
Linear Displacement
The term "displacement" refers to when something shifts away from its original "location," and "linear" refers to a straight line. As a result, “Linear Displacement” can be described as the movement of an object in a straight line along a single axis, for example, from side to side or up and down. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Non-contact sensors such as LVDTs and other linear location sensors can calculate linear displacement. Linear displacement is usually measured in millimeters or inches and may be positive or negative.
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