The coil of a calorimeter C has a resistance of R₁ = 60Ω. The coil R₁ is connected to the circuit as shown in figure. What is the rise in temperature (°C) of 240 grams of water poured into the calorimeter when it is heated for 7 minutes during which a current flow through the coil and the ammeter shows 3A? The resistance R₂ = 30Ω. [Disregard the resistances of the battery and the ammeter, and the heat losses and heat capacity of the calorimeter and the resistor and specific heat of water = 4200 J/kg°C]
Physics · Current electricity · Electrical Instruments: Galvanometer, Ammeter, Voltmeter & Potentiometer
The coil of a calorimeter C has a resistance of R₁ = 60Ω. The coil R₁ is connected to the circuit as shown in figure. What is the rise in temperature (°C) of 240 grams of water poured into the calorimeter when it is heated for 7 minutes during which a current flow through the coil and the ammeter shows 3A? The resistance R₂ = 30Ω. [Disregard the resistances of the battery and the ammeter, and the heat losses and heat capacity of the calorimeter and the resistor and specific heat of water = 4200 J/kg°C]
