Using Fig. 3.1, finish the circuit diagram so that the heater is linked to the power supply, the ammeter and the voltmeter.
At the start, the block is at room temperature, which is $23.5^\circ\text{C}$. The student then switches on the power supply and starts the stop-clock at the same moment. The ammeter and voltmeter readings are displayed in Fig. 3.2. Record these readings: $I =$ [BLANK], $V =$ [BLANK].
Once $10$ minutes have passed, the power supply is turned off. The highest thermometer reading is $29.0^\circ\text{C}$. The specific heat capacity $c$ of the aluminium block is given by $c = \frac{IVt}{m\Delta \theta}$, where $t$ is the time in seconds for which the heater is on, $m$ is $1.00\,\text{kg}$ and $\Delta \theta$ is the rise in temperature of the block. Calculate $c$. Give your answer correct to two significant figures.
The accepted value of $c$ is not the same as the value measured. Suggest two reasons for this.