Little Innovators Club
Report: Activity 3
Date of activity: Saturday, 26th July 2025
Place of the activity: Karigar School of Applied Learning
Name of the activity: Making a Non-Contact Voltage Detector (Electrical Lab)
Attended by: Little Innovators Club members (10 students and 2 teachers)
Reported by: Ms. Sheetal Rao
Objectives of the Activity:
- To understand the arrangement in an AC circuit.
- To develop scientific thinking through observation and experiments.
- To develop design thinking skills.
‘Design thinking is simple the process of solving problems and creating something new.’
This thought truly came to life during the third club activity.
The Electrical lab facilities and activities conducted at Karigar are impressive. Based on the types of workshops and training sessions conducted, the lab includes a full range of equipment necessary for understanding and working with basic electrical concepts and circuits.
The students experimented and performed the following activities in the electrical lab:
- Understanding fundamental electrical concepts: This included exploring energy, electricity, atomic structure, AC vs. DC supply, conductors and insulators, series and parallel circuits, and Ohm’s law.
- Measuring electrical quantities: Learning to measure current, voltage, and resistance.
- Building practical circuits: Creating projects like Non-Contact Voltage Detector (NCVD) .i.e AC Voltage detector (used commonly in homes) by using battery and soldering wires.
Karigar emphasizes on a learning by doing approach, where students are actively engaged in practical tasks and projects to develop their skills. This methodology is designed to foster curiosity, problem-solving skills, and a deeper understanding of how electrical systems work. In essence, Karigar’s electrical lab serves as a space for individuals of various ages to gain practical electrical skills through hands-on learning experiences and workshops.
The hands-on nature of the session greatly enhanced their understanding and kept them engaged throughout the session. They were excited to use and test their voltage detector on various objects in the lab.
