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According to the formula: R = ρ(L/A) where R is resistance, L is length, A is cross-sectional area, and ρ is resistivity. So, resistance increases with length and decreases with area.
A transformer has 1000 turns in the primary and 100 in the secondary coil. If input voltage is 220 V, output voltage is:
What is the name of the process by which a liquid changes into gas at all temperatures?
Which of the following is a nonrenewable source of energy?
A brass boiler has a base area of 0.2 m2 and thickness 1.0 cm. It boils water at the rate of 6.0 kg/min when placed on a stove. Calculate th...
Newton’s second law of motion primarily explains which of the following?
A wire loop in the shape of a square of side a carries a current I. If an infinitely long straight wire carrying the same current passes through the cen...
An athlete can jump farther by running before jumping due to which type of inertia?
Who laid the foundations of Quantum Theory?
A soap bubble expands isothermally and its radius doubles. The work done by surface tension during this expansion is:
A spherical ball made of steel when dropped in mercury container will –
