At constant temperature, resistance and cross-sectional area are

Related MCQs

• When temperature rises, resistance of negative temperature coefficient thermistor
• An object moving in a circle of radius ‘r’ with a constant speed ‘v’ has a constant acceleration towards the center equal to
• Graph of resistance of thermistor to temperature is
• In NTC thermistor on increasing temperature, the resistance
• Current in a circuit if resistance of 15 Ω and potential difference of 3.0 V is applied across it's ends is
• If current of 20 mA is passing through op-amp and voltage drop across series resistor is 10 V then value of resistance is
• Three resistances 20 Ω, 30 Ω and 60 Ω are connected in parallel, their combined resistance is given by
• Combined resistance of 5 Ω and 10 Ω is equal to
• Maximum current a battery of e.m.f 3.0 V and internal resistance 1.0 Ω is
• Grid cables are 15 km long with a resistance of 0.20 Ω km-1, powers wasted as heat in these cables are