How does an electrostatic pendulum work?

A charged object brought near the pendulum bob produces an electrostatic force, causing the bob to move, attract, or repel depending on charge conditions.

What material is the bob made from?

The bob material is not confirmed in current product data. Schools should confirm whether it is pith, foil, cork, plastic, or metal-coated before ordering.

Does it include charged rods?

Charged rod inclusion is not confirmed. Schools should confirm whether rods or friction cloth are supplied with the final kit before ordering.

Can it show both attraction and repulsion?

Yes. It can show both attraction and repulsion when the bob and an external object are charged under suitable classroom conditions.

Is it suitable for school physics labs?

Yes. It is suitable for supervised school and college electrostatics practicals, teacher demonstrations, and STEM activities.

Home » Our Product » Physics Lab Equipment » Electronic Instruments » Electrostatic pendulum

Electrostatic pendulum

Product Code : SCL-EI-10677

The Electrostatic Pendulum is a physics laboratory apparatus manufactured and exported by Lab Glassware Manufacturer, Ambala, Haryana, India, a manufacturer and exporter of laboratory glassware, scientific instruments, and STEM teaching apparatus since 1982. It uses a lightweight suspended bob to demonstrate electrostatic attraction, repulsion, charge transfer, and induction, and is supplied to schools, colleges, and STEM laboratories across India and to export buyers in countries including the United Arab Emirates, Saudi Arabia, Qatar, and Oman, and across the Middle East region.

Quick answer: An Electrostatic Pendulum lets students see electrostatic force in action: bringing a charged rod near the suspended bob causes visible attraction, deflection, or repulsion without any direct mechanical contact. It is typically used with charged rods, friction materials, or an electrostatic generator, and is a simple, teacher-friendly way to introduce electrostatics before moving on to instruments that measure charge numerically. Bob material, stand design, thread type, and included accessories vary by unit — check the specific listing before ordering.

Technical Specifications

Specification	Detail
Product Name	Electrostatic Pendulum
Brand	Lab Glassware Manufacturer
Product Category	Physics Lab Equipment / Electronic Instruments / Electrostatics Apparatus
Function	Demonstrates electrostatic attraction, repulsion, charge transfer, and induction using a suspended lightweight bob
Bob Material	(e.g. pith, foil, cork, plastic, or metal-coated) — see specifications for details
Stand / Thread / Base	. Confirm the bob moves freely and does not touch the stand or base. Charge a suitable rod using the approved friction material. Bring the charged rod near the pendulum bob without touching it. Observe attraction, movement, or deflection of the bob. Touch the charged rod to the bob if the experiment requires charge transfer. Move the rod away and observe whether the bob is attracted or repelled. Discharge the bob safely before repeating the experiment. Safety note: Use only under teacher supervision. Keep the apparatus dry, avoid high-voltage supplies unless specifically approved, and keep electrostatic generators away from pacemakers, sensitive electronics, flammable vapours, and wet surfaces. Care & Maintenance Store the pendulum dry and protected from dust and impact. Keep the bob and suspension thread clean for consistent movement. Do not bend the stand or pull the thread forcefully. Remove from use if the bob is damaged, the thread breaks, the base becomes unstable, or movement is restricted. Building a Complete Electrostatics Teaching Set An Electrostatic Pendulum works best as part of a small electrostatics teaching set rather than in isolation, since it needs a charging source and benefits from a way to quantify what students observe. Schools ordering from Lab Glassware Manufacturer commonly pair it with a Friction Bar (Glass) or Friction Bar (Hard Rubber) to generate positive or negative charge by friction, and a Coulombmeter to move from qualitative observation (the bob visibly deflects) to a measured numeric value for the charge involved. Ordered together, these let a single lesson cover charge generation, qualitative demonstration, and quantitative measurement. Why Choose Lab Glassware Manufacturer Lab Glassware Manufacturer designs, manufactures, and exports laboratory glassware, scientific instruments, physics and electronics teaching apparatus, science kits, and STEM models from Ambala, Haryana, India, with a manufacturing history dating to 1982. Its product range covers physics lab equipment, electronic instruments, general lab equipment, and school lab equipment, supplied to schools, colleges, universities, research institutions, and export buyers, including institutional buyers across the United Arab Emirates, Saudi Arabia, Qatar, Oman, and the broader Middle East region. The company holds ISO 9001 and ISO 13485 certification; any other certification claim for a specific product should be confirmed directly with Lab Glassware Manufacturer before it is used in tender or catalogue documentation. Frequently Asked Questions What is an Electrostatic Pendulum used for? An Electrostatic Pendulum is used to demonstrate electrostatic attraction, repulsion, charge transfer, and induction in physics experiments. How does an electrostatic pendulum work? A charged object brought near the pendulum bob produces an electrostatic force, causing the bob to move, attract, or repel depending on charge conditions. What material is the bob made from? The bob material is not confirmed in current product data. Schools should confirm whether it is pith, foil, cork, plastic, or metal-coated before ordering. Does it include charged rods? Charged rod inclusion is not confirmed. Schools should confirm whether rods or friction cloth are supplied with the final kit before ordering. Can it show both attraction and repulsion? Yes. It can show both attraction and repulsion when the bob and an external object are charged under suitable classroom conditions. Is it suitable for school physics labs? Yes. It is suitable for supervised school and college electrostatics practicals, teacher demonstrations, and STEM activities. Related Products Friction Bar (Glass) Friction Bar (Hard Rubber) Coulombmeter Request a Quote For pricing, specifications, or bulk/institutional orders of the Electrostatic Pendulum, contact Lab Glassware Manufacturer or submit your requirement via the tender enquiry page. Last updated: September 2026