If the output of the information source is a non-electrical signal like a voice signal, a ...A... converts it to ...B. form before giving it as an input to the ...C.... Here, A, B and C refer to

Options

A. receiver, electrical, channel
B. channel, magnetic, transducer
C. transducer, electrical, channel
D. transducer, electrical, transmitter

Explanation

To solve the question, we need to identify what A, B, and C represent in the context of converting a non-electrical signal (like a voice signal) into a suitable form for transmission.

### Step-by-Step Solution:

1. **Identify A (the converter)**:
- A is the device that converts a non-electrical signal (like a voice signal) into an electrical signal. This device is known as a **transducer**.
- **Hint**: Think about devices that change one form of energy to another, especially in communication systems.

2. **Identify B (the form of the signal)**:
- After the conversion by A (the transducer), the non-electrical signal (voice) is converted into an **electrical signal**.
- **Hint**: Consider what type of signal is typically used in electronic communication after conversion.

3. **Identify C (the input destination)**:
- The electrical signal produced by the transducer is then sent to a **transmitter**. The transmitter is responsible for modulating the signal for transmission over a channel.
- **Hint**: Think about the next step after converting the signal; what device prepares the signal for sending it out?

### Final Answer:
- A = Transducer
- B = Electrical Signal
- C = Transmitter

### Summary:
In summary, if the output of the information source is a non-electrical signal like a voice signal, a **transducer (A)** converts it to an **electrical signal (B)** before giving it as an input to the **transmitter (C)**.