By the statement that ohm's law is not a fundamental law of nature? (t or 2 sentences) 4 marks) (c) the circuit shown in figure 1 can be used to measure the resistance of a platinum resistance thermometer (prt). ab is a uniform resistance wire of length 1.0 m and c is a sliding contact on this wire. a standard resistor r is included in the circuit. the position of c is adjusted until the voltmeter v reads zero. figure 1 for use with question (i) by applying kirchhoffs laws to loops adca and bcdb, deduce an expression for the resistance of the prt in terms of1, and the value of the standard resistor. (7 marks) (ii) the prt consists of 9.0 m of wire ofdiameter 8.0 × 10-2 mm. the voltmeter reads 0 v when 0.44 m. if the standard resistor, r, has a resistance of 224 ω, what is the resistivity of platinum? 7 marks)