Class 10 Science questions for CBSE

What is the strength of the magnetic field inside a solenoid if the current flowing through it is doubled?

Using the Right Hand Thumb Rule, if the thumb points in the direction of the current, which direction do the fingers curl?

A current-carrying conductor is placed in a magnetic field. How does the magnetic field around the conductor behave?

Explain the process of photosynthesis, detailing the role of chlorophyll, sunlight, carbon dioxide, and water in the formation of glucose and oxygen. Include the balanced chemical equation for photosynthesis and discuss the factors that affect this process, such as light intensity, temperature, and carbon dioxide concentration.

A straight conductor carries a current of 5 A. If the magnetic field strength at a point 10 cm away from the conductor is measured, explain how to calculate the magnetic field using the formula B = (μ₀I)/(2πr). Discuss the significance of the right-hand thumb rule in determining the direction of the magnetic field produced by the current-carrying conductor.

Discuss the impact of waste disposal on the environment, particularly focusing on how the addition of different types of waste (biodegradable and non-biodegradable) affects soil, water, and air quality. Explain the processes involved in the degradation of these wastes and the long-term consequences for ecosystems. Provide examples to illustrate your points.

Describe how a solenoid can create a magnetic field and mention one application of this principle.

Identify and explain one chemical property of bases using an example of a common base.

Discuss the roles of producers and consumers in an ecosystem, providing one example of each.

A circuit contains a 6V battery and a resistor of 3Ω. Calculate the current flowing through the circuit and draw its circuit diagram.

Explain the term 'life processes' and give two examples of such processes in organisms.

Explain the role of the liver in the human digestive system.

A resistor in a circuit has a resistance of 5 ohms. If a current of 2 A flows through it, what is the voltage across the resistor according to Ohm's Law?

Identify the biotic components of an ecosystem using a forest as an example.

What ions are produced when hydrochloric acid (HCl) is dissolved in water according to the Arrhenius concept?

Describe the direction of the magnetic field lines around a straight current-carrying conductor.

Which of the following factors does NOT affect the rate of photosynthesis?

Which process is NOT considered a life process in living organisms?

Which of the following indicators would change color when added to a strong acid?

When hydrochloric acid reacts with sodium bicarbonate, which of the following products is formed?