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JEE Thermal and Chemical Effects of Electric Current PYQs with Solutions

43 previous year questions from Thermal and Chemical Effects of Electric Current (JEE Main & Advanced Physics) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

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About Thermal and Chemical Effects of Electric Current PYQs

Thermal and Chemical Effects of Electric Current has 43 previous year questions in the Quantrex Academy JEE Main & Advanced Physics bank. The 43 questions in this list come from Concepts Of Physics MCQ Edition [Volume 2] (43). Each question opens on its own page with the options, the correct answer and the worked solution where available.

JEE Thermal and Chemical Effects of Electric Current PYQs with Solutions

About Thermal and Chemical Effects of Electric Current PYQs

Thermal and Chemical Effects of Electric Current questions with solutions

A wire with a resistance of 25 Ω carries an electric current of 2.0 A . Determine the amount of heat developed in 1 minute.

A heater coil has a specification of 250 V , 500 W . Determine the resistance of the coil. Additionally, what will be the resistance of a 1000 W coil designed to operate at the

A nichrome wire ( ρ = 1.0 × 10^ -6 Ω m ) is used to build a heater coil intended to operate at 500 W when connected to a 250 V supply. Determine the resistance of the coil.

A heater coil, designed to operate at 500 W across a 250 V supply, is fabricated from a nichrome wire having a resistivity of 1.0 × 10^ -6 Ω m . If the wire has a cross-sectional

A nichrome wire ( ρ = 1.0 × 10^ -6 Ω m ) with a cross-sectional area of 0.5 mm^2 is used to wrap a heater coil that operates at 500 W when connected to a 250 V supply. If each

A coil with a resistance of 100 Ω is connected across a battery having an emf of 6.0 V . Assuming all the heat developed in the coil goes into raising its temperature, and given

When connected across a 220 V power supply, an electric bulb consumes 60 W of power. What will be the power consumed if the supply voltage drops to 180 V , and what will it be if

A bulb with a rating of 250 V , 100 W is connected to a 220 V power supply situated 10 m away, utilizing a copper wire with a cross-sectional area of 5 mm^2 . Determine the power

An electric bulb marked 220 V , 100 W will get fused if it is made to consume 150 W or more. What maximum voltage can the bulb withstand?

An immersion heater rated at 1000 W , 220 V is utilized to heat 0.01 m^3 of water. Assuming that the power is supplied at 220 V and 60\% of the supplied power goes into heating

A servo voltage stabiliser limits its output voltage to 220 V ± 1\% . When an electric bulb rated at 220 V , 100 W is connected to this stabiliser, determine the minimum and

When the room temperature is 25^ ^ ^ ∘ C , an electric kettle used for preparing tea takes 2 minutes to boil 4 cups of water (where 1 cup contains 200 cc of water). Calculate the

When the room temperature is 25^ ^ ^ ∘ C , an electric kettle used for preparing tea takes 2 minutes to boil 4 cups of water (where 1 cup contains 200 cc of water). Given that the

The coil of an electric bulb requires 40 W to begin glowing. When more than 40 W is supplied, 60\% of the surplus power is converted into light, while the remainder turns into

As illustrated in the figure, the 2.0 Ω resistor is immersed in a calorimeter containing water. The combined heat capacity of the calorimeter and the water is 2000 J K^ -1 . If

A 6 V ideal battery, a 1 Ω resistor, and a 2.0 Ω resistor are connected in series. The 2.0 Ω resistor is dipped into a calorimeter containing water. The heat capacity of the

The junction temperatures of a bismuth–silver thermocouple are kept at 0^ ^ ^ ∘ C and 0.001^ ^ ^ ∘ C . Determine the developed thermo-emf (Seebeck emf). Given for bismuth–silver

Determine the thermo-emf developed in a copper-silver thermocouple if the junctions are maintained at 0^ ^ ^ ∘ C and 40^ ^ ^ ∘ C . Use the data from the table.

Determine the neutral temperature and the inversion temperature of a copper–iron thermocouple when the reference junction is maintained at 0^ ^ ^ ∘ C . Use the data provided in

Determine the charge required to pass through an electrolyte in order to liberate one atom of a monovalent material.

Determine the charge required to pass through an electrolyte in order to liberate one atom of a divalent material.

Determine the amount of silver liberated at the cathode if a current of 0.500 A flows through an AgNO_3 electrolyte for 1 hour. The atomic weight of silver is 107.9 g mol^ -1 .

An electroplating unit deposits 3.0 g of silver onto a brass plate over a period of 3.0 minutes. Determine the current utilised by the unit. The electrochemical equivalent of

Determine the time needed to liberate 1.0 litre of hydrogen at STP in an electrolytic cell using a current of 5.0 A .

Two voltameters, one containing a solution of silver salt and the other a solution of a trivalent-metal salt, are connected in series. A current of 2 A is maintained for 1.50

Two voltameters, one containing a solution of silver salt and the other a solution of a trivalent-metal salt, are connected in series. A current of 2 A is maintained for 1.50

A brass plate with a surface area of 200 cm^2 on one side is electroplated with 0.10 mm thick silver layers on both sides using a 15 A current. Determine the time taken to

As shown in the figure, a current is passed through an electrolyte of AgCl . It is observed that 2.68 g of silver is deposited on the cathode in 10 minutes. Determine the heat

When connected to a silver voltameter, the potential difference across the terminals of a battery having an emf of 12 V and an internal resistance of 2 Ω drops to 10 V . Determine

A plate having an area of 10 cm^2 is to be electroplated with copper (density 9000 kg m^ -3 ) to a thickness of 10 micrometres on both sides, utilising a 12 V cell. Determine the

Which of the provided plots can represent the thermal energy generated in a resistor over a given time interval as a function of the electric current?

A constant current i is maintained in a resistor. Taking into account the temperature coefficient of resistance, select the plot in the figure that best illustrates the rate of

Examine the following statements about a thermocouple. (A) The neutral temperature is independent of the cold junction temperature. (B) The inversion temperature is independent of

The heat generated in a system is directly proportional to the electric current passing through it.

Thomson effect is caused

Consider the two statements given below. (A) The free-electron density varies among different metals. (B) The free-electron density in a metal is dependent on temperature. The

The Faraday constant

Consider the following two statements. (A) Free-electron density is different in different metals. (B) Free-electron density in a metal depends on temperature. Peltier effect is

An iron strip AC and a copper strip AB are connected together at A . The junction A is kept at 0^ ^ ^ ∘ C , while the free ends B and C are held at 100^ ^ ^ ∘ C . A potential

For the silver–lead pair, the constants a and b are given as 2.50 ^ ^ ^ ∘ ^ -1 and 0.012 ^ ^ ^ ∘ ^ -2 , respectively. If a silver–lead thermocouple has its colder junction kept at

A current is passed through a combination of two resistors connected in series, both possessing equal resistances. Disregard any change in resistance due to temperature

An electrolysis experiment is halted, and the connections to the battery terminals are subsequently reversed.

The electrochemical equivalent of a material is dependent upon

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