Final answer:
The electric field strength inside a parallel-plate capacitor is calculated using the formula E = V/d. An actual potential difference must be provided to solve the specific problem. For example, with a potential difference of 1.50 × 104 V and a separation of 1.2 mm, the field strength would be 1.25 × 107 V/m.
Step-by-step explanation:
To calculate the electric field strength inside a parallel-plate capacitor, we use the formula E = V/d, where E is the electric field strength, V is the potential difference between the plates, and d is the separation between the plates. However, the question does not provide the potential difference, so it's necessary to assume a value or that the student will provide this missing information. If the potential difference were known, we could compute the electric field strength directly. For instance, if the potential difference was 1.50 × 104 V and the separation was 1.2 mm or 0.0012 m, the electric field strength would be:
E = V / d = (1.50 × 104 V) / (0.0012 m) = 1.25 × 107 V/m
This answer is provided as an example with an assumed potential difference. To solve the student's problem, the actual potential difference (voltage) between the plates of their specific capacitor is required.