The Electric Field (or Electric Field Intensity) at a point is defined as the electrostatic force experienced by a unit positive test charge placed at that point.
Formula: Electric Field = Force / Charge.
Dimensional Formula: [M L T⁻³ A⁻¹].
Dimension of Charge: [A T].
SI Unit: N/C or V/m.
Step 1: The formula for Electric Field (E) is: E = Force / Charge (E = F / q)
Step 2: Find the dimension of Force and Charge:
Step 3: Substitute them into the formula: E = [M L T⁻²] / [A T] E = [M L T⁻² · A⁻¹ T⁻¹]
Final Dimensional Formula: [M L T⁻³ A⁻¹]
The dimensional formula of an electric field is [M L T⁻³ A⁻¹].
Electric charge is Current × Time, so its dimension is [A T].
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