Name the type of forces involved in the following :
b) A sticker attached to steel almirah without glue.

Options

A. Magnetic force
B. Electrostatic force
C. Gravitational force
D. Frictional force

Answer

To determine the type of force involved when a sticker is attached to a steel almirah without glue, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Materials**: We have a sticker and a steel almirah. The sticker is made of a material that can interact with steel.

2. **Consider the Nature of the Interaction**: Since the sticker is attached to the steel almirah without the use of glue, we need to think about what type of force can cause this attachment.

3. **Recognize the Properties of Steel**: Steel is a ferromagnetic material, meaning it can be magnetized and is attracted to magnets.

4. **Understand the Concept of Magnetic Force**: When a magnet is brought close to a ferromagnetic material like steel, it creates a magnetic field that can attract the material. This attraction is what allows the sticker to adhere to the steel almirah.

5. **Conclude the Type of Force**: Therefore, the force that is responsible for the sticker sticking to the steel almirah without glue is the **magnetic force**.

### Final Answer:
The type of force involved is **magnetic force**.

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