SSC (English Medium) 10th Standard - Maharashtra State Board Important Questions

Explain the application of heating effect of electric current in an electric bulb with a diagram.

Observe the given figure of Fleming's Left Hand Rule and write the labels of 'A' and 'B':

If 220 V potential difference is applied across an electric bulb, a current of 0.45 A flows in the bulb. What must be the power of the bulb?

Answer the following questions based on the given graph.

1. Identify which curve shows AC and DC.
2. What is the frequency of AC and DC?

Tara, after completing her exams, went to her grandmother's house along with her younger brother Rahul. One day, Rahul came home after playing and switched on the fan and air conditioner. At the same time, his grandmother was preparing a milkshake for him using a mixer. Suddenly, they heard a big sound and the electricity of the house got shut down. Tara is called an electrician. He said the main reason for supply to shut down was overloading.

1. What is overloading?
2. Is overloading and short the same? When does short-circuiting take place?
3. How can the effects of overloading be avoided?

Observe the following diagram and answer the questions.

1. Construction of which equipment does the above diagram show?
2. On which principle does this equipment work?
3. According to which law the coil ABCD rotates?
4. Write the law in your own words.
5. Where is this equipment used?

Find the odd one out.

Complete the correlation:

DC : Non-oscillatory current flowing in one direction : : AC : ______

In the electric equipment producing heat like iron, electric heater, boiler, toaster etc., an alloy such as nichrome is used, not pure metals.

Observe the given figure of a current-carrying solenoid and write the labels of A and B correctly.

The figure given below shows the magnetic field around the conductor. Study it and answer the questions:

1. What changes are caused by increasing current?
2. What do you see when the magnetic needle is kept a little away from the wire?
3. In the second part of the figure, the iron filings arrange themselves in a circular manner around the wire. Why does this happen?

Identify the figure and give its use.

Draw a neat diagram of a solenoid and name its various components.

Name and state the principle used to measure the specific heat capacity of a substance.

Read the following paragraph and answer the questions.

1. Heat is transferred from where to where?
2. Which principle do we learn about from this process?
3. How will you state the principle briefly?
4. Which property of the substance is measured using this principle?

Study the following procedure and answer the questions below:
1. Take 3 spheres of iron, copper and lead of equal mass.
2. Put all the 3 spheres in boiling water in a beaker for some time.
3. Take 3 spheres out of the water. Put them immediately on a thick slab of wax.
4. Note, the depth that each sphere goes into the wax.
i) Which property of substance can be studied with this procedure?
ii) Describe that property in minimum words.
iii) Explain the rule of heat exchange with this property.

When heat energy is absorbed by object ΔT represents the raise in temperature. What would be ΔT represent if the object loses heat energy?

The vapour content in the air is measured using a physical quantity called ____________.

Write a short note.

Specific heat capacity

How much is the relative humidity at the dew point?