Prandtl number is the ratio of:
(1) Momentum diffusivity to mass diffusivity
(2) Momentum diffusivity to thermal diffusivity
(3) Thermal diffusivity to mass diffusivity
(4) Thermal conductivity to specific heat
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2 is the correct option...
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Ohm's Law is a formula used to calculate the relationship between voltage, current and resistance in an electrical circuit. To students of electronics, Ohm's Law (E = IR) is as fundamentally important as Einstein's Relativity equation (E = mc²) is to physicists. E = I x R.
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