The correct answer is Uttar Pradesh.

In News

• Uttar Pradesh became the second-largest economy in India. Maharashtra occupied the first spot.

Key Points

• Maharashtra leads with a GDP share of 15.7 percent of the country's total GDP.
• Uttar Pradesh has emerged as the second-largest economy of India with a GDP share of 9.2 percent.
• Tamil Nadu bagged 3rd position with 9.1% of India's GDP share.
• Gujarat (8.2 %), and West Bengal (7.5 &) bagged the 4th and 5th spot respectively.

Additional Information

• The report is in the form of creative graphics and is based on Sensex and CSLA (Credit Lyonnais Securities Asia).
• According to official statistics, Uttar Pradesh was third in GDP share last time. This time, it has surpassed Tamil Nadu and has occupied the second spot.

Concept:

Power: The rate of work done by electric energy is called power. It is denoted by P.

• The SI unit of power is the watt (W)
• 1 Kilo-watt = 1000 Watt

1 unit of electric energy: When a one-kilowatt load works for 1 hour then the energy consumed is called 1 unit of electricity.

• 1 Unit of electricity = 1 kWh = 1000 Watt-hour = 3.6 × 106 J

Calculation:

Given:

P = 40 W = 0.04 kW, V = 220 V, t = 24 hr

Now, the units consumed = P × t

= 0.04 × 24 

= 0.96 kWh = 0.96 Unit

A transducer is an electronic device that converts energy from one form to another. It converts mechanical energy into electrical energy.

Examples: Microphones, loudspeakers, thermometers, position and pressure sensors, strain gauge, thermocouple and antenna.

Given:

The Diameter of a conical tent = 28 feet

The slant height of a cone = 18 feet

Formula:

Area of Cone = πrl

⇒ 22 × 2 × 18

⇒ 792 feet

The Area of Conical Tent is 792 feet

∴ The Correct Answer is 792 feet

Galvanometer: It is an instrument that is used to detect and measure the small current through a conducting circuit.

EXPLANATION:

• The voltmeter is used to measure the potential difference between two points in an electric circuit.
• The rheostat is a device that helps in varying the current by varying the resistance in the circuit.
• The wattmeter is an electrical instrument that is used to measure the electric power of any electrical circuit.
• The ammeter is used to measure the magnitude of current through a circuit.
• A galvanometer can detect the presence of current. The deflection on the galvanometer indicates the direction of the current in that circuit.
• Thus, the instrument that can detect the direction of flow of current is a galvanometer.

Important Points

• The major difference between an ammeter and a galvanometer is that an ammeter measures the magnitude of the current flowing. Whereas, the galvanometer detects both the direction and magnitude of the small current of the order of microamperes.

Concept:-

Accumulator: An accumulator is a register for short-term, intermediate storage of arithmetic and logic data in a computer's CPU.

RAL instruction: It stands for Rotate Accumulator left. It is an implicit Addressing mode having an opcode size of 1 byte.

Even if our accumulator is 8 bit, the RAL instruction is going to follow 9-bit rotation as it will include carry also.

Analysis:

8 → 0000 1000

After 1st RAL

0001 0000

After 2nd RAL

0010 0000

The decimal value is 32

Note: If the value of CY flag is not given then It is assumed to be zero

• Modifier keys include Alt, Ctrl, shift and the Windows key.

• A modifier key is a key on a computer's keyboard that's only used in conjunction with another key. Modifier keys are often used with other keys to perform computer keyboard shortcuts and other commands. 

• There are unique variant commands for the FUNCTION keys F1 through F12. They are referred to as improved function keys. Your productivity can rise with the help of enhanced function keys that provide you quick access to frequently used tasks.

• Numeric keys provide calculator-style efficiency for entering numbers.

• The keys on the keyboard that control the screen's cursor. They consist of the home, end, pageUp, pageDown, up, down, left, and right arrows.

Concept:

• Resistance is the ability of any electrical component to resist electric current across it.
• Equivalent Resistance can be defined as the resistance of the resistor which will replace all the resistors between two points and will draw the same current between these two points as it was flowing Earlier.
• Ohms Law: At constant temperature, a potential difference is the product of current and resistance.

Series and Parallel Connection:

Calculation:

Here in the diagram, three resistors are present.

We have to find resistances between A and B.

From A to B, we have two paths, 1 is direct having resistance 40 Ω. 

The second is via C, where 100 Ω and 60 Ω resistors are in series. 

Equivalent resistance across A the bath of ACB will be sum of these two resistors as they are in series.

So, Resistance R _ACB = 60 Ω + 100 Ω = 160 Ω

Also, this combination is in Parallel with 40 Ω resistor. 

The equivalent resistance is 

⇒ R _eq = 32 Ω

 So, the correct option is  32 Ω.

Concept:

Ampere's law:

It states that the magnetic field created by an electric current is proportional to the size of that electric current with a constant of proportionality equal to the permeability of free space.

The magnetic field due to long  straight wire is given by;

Where B = strength of magnetic field, I = current, R = radius or distance.

Explanation:

Given:

R₁ = 4 cm = 0.04 m, R₂ = 2 cm = 0.02 m, B₁ = 10^-3

So as from the Amperes law

Concept:

Resistivity (ρ): The property of a conductor that opposes the flow of electric current through them and is independent of the shape and size of the materials but depends on the nature and temperature of the materials is called resistivity.

• The unit for resistivity is the ohm-meter (Ω-m).
• The resistivity of a material depends on its nature and the temperature of the conductor.
• The resistivity of a material doesn't depend on its shape and size (length and area).

Resistance: The property of any conductor that opposes the flow of electric current through it and depends on the shape and size of the materials, temperature, and nature of the materials is called resistance.

• It is denoted by R and the SI unit is the ohm (Ω).

The resistance is given by:

where ρ is resistivity, L is the length and A is the area of the cross-section. 

Calculation:

Given:

L = 1 m, A = 10 cm² = 10 × 10^-4 m², R = 100 Ω