State the factors affecting resistance of a conductor.
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A resistance thermometer has resistance 95.2 Ω at the ice point and 138.6 Ω at the steam point. What resistance would be obtained
Here the thermometric property P is the resistance. If R is the resistance at 27 °C, Using equation, T = \(\frac{100(P_T-P_1)}{(P_T-P_1)}\) For T = 27 °C, P1 = 95.2 Ω, P2 = 138.6 Ω . ∴ 27 = \(\frac{100(R-95.2)}{(138.6-95.2)}\) ∴...
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The resistance of a conductor …………………. when the length of a conductor increased for providing constant temperature and cross-sectional area.
B) increases
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If the length and diameter of a conductor both are halved, the resistance of the conductor becomes …………………….
Correct option is D) halved
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Enlist the factors affecting the activity of enzymes.
The factors affecting the enzyme activity are as follows: 1. Concentration of substrate: a. Increase in the substrate concentration gradually increases the velocity of enzyme activity within the limited range of substrate levels. b....
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List any three factors affecting the Working Capital requirement of a company.
Factors affecting working capital requirement of the company : 1. Nature of Business influences working capital requirements in a trading organisation which usually needs a smaller amount of working capital compared...
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A piece of platinum wire has resistance of 2.5 Ω at 0 °C. If its temperature coefficient of resistance is 4 × 10^-3/°C. Find the resistance
Given: R0 = 2.5 Ω α = 4 × 10-3/°C = 0.004/°C T = 80 °C To find: Resistance at 80 °C (RT) Formula: RT = R0(l + αT) Calculation: From formula, RT = 2.5 [1+ (0.004 × 80)] =...
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Describe ‘any two’ factors affecting the rate of photosynthesis.
External factors which affect photosynthesis are as follows: 1. Light: a. It is an essential factor as it supplies the energy necessary for photosynthesis. b. Quality and intensity of light affects the photosynthesis. c....
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With reference to factors affecting the rate of photosynthesis, which of the following statements are NOT correct?
The correct answer is (C) C3 plants responds to higher temperatures with enhanced photosynthesis while C4 plants have much lower temperature optimum.
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What are the factors affecting the disaster
Poverty. Photo. ... Population growth. There is an obvious connection between the increase in losses from a disaster and the increase in population. ... Rapid urbanization. ... Transitions in cultural practices. ... Environmental degradation.
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Human factors affecting population distribution. (a) Agriculture (b) Availability of water
Correct option: (b) Varahamihir
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