A 2 Ω resistor carries 3 A. Find voltage and power.
Structure a solution for “Μαγνητική δύναμη”: givens, SI units, law, substitution, and interpretation.
Identify three uncertainty sources in measuring “Δύναμη Laplace” and improve each one.
Plan a suitable graph for “Κίνηση φορτίων σε μαγνητικό πεδίο” data and explain how to obtain a gradient or relationship.
Check whether a result for “Αλληλεπίδραση παράλληλων ρευμάτων” is sensible using units, order of magnitude, and a limiting case.
Connect “Μαγνητικό πεδίο ρευματοφόρων αγωγών” to energy conservation or a force/field model and justify the choice.
Write a multi-step exam response about “Μαγνητική δύναμη” with calculation and evaluation.
Compare two methods for investigating “Δύναμη Laplace” and select the more reliable using criteria.