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please help with the following questions 1 (a) State Coulomb's Law in equation form giving what each variable 3 Marks represents. (b) Fig 1.1 shows

please help with the following questions
1 (a) State Coulomb's Law in equation form giving what each variable 3 Marks represents. (b) Fig 1.1 shows three stationary charges. Find the magnitude and direction of the resultant force on the -4uC charge. 7 Marks +5uC 40cm -3UC 40cm -4uC Fig 1.1 2 (a) State Ohm's Law. 1 Mark ( b ) Fig 2.1 shows a circuit containing four resistors and a battery. Find: 20V 102 102 20 Fig 2.1 The effective resistance of the circuit. 3333 The current in each of the resistors. The p.d across all the resistors. The power dissipated by the circuit. 9 Marks

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